Multiple Choice Science Questions

1. Musculoskeletal system is an association of bones, joints and tissues. Which of the following organs of the musculoskeletal system prevents the dislocation of joints?

a. Ligaments

b. Tendons

c. Cartilages

d. Patella

ANS: A

EXP: Ligaments are the elastic tissues that protect bones and prevent dislocation of joints.

2. Our musculoskeletal system is a complex system consisting of many different organs. Which of the following organs is not a part of the musculoskeletal system?

a. Bones

b. Ligaments

c. Tendons

d. Lungs

ANS: D

EXP: Lungs are a part of our respiratory system not musculoskeletal system.

3. Our bones are connected to each other and there are certain connective tissues that prevent their wear and tear. Which part of the musculoskeletal system prevents bones from rubbing with each other?

a. Cartilages

b. Ligaments

c. Tendons

d. Muscles

ANS: A

EXP: Cartilages are the tissues that prevent bones from rubbing against each other.

4. Our skeletal system performs a number of functions. Which of the following is not a function of the skeletal system?

a. Act as a storehouse of minerals like calcium and phosphorus

b. Protection of organs of the body

c. Movement of human body

d. Carry blood to different organs

ANS: D

EXP: Carrying blood to different parts of the body is not a function of our skeletal system.

5. Vital organs of our body are protected by frameworks of bones. Which part of the skeletal system protects our brain?

a. Skull

b. Rib cage

c. Backbone

d. Pelvis

ANS: A

EXP: Skull protects our brain and eyes.

6. Vital organs of our body are protected by frameworks of bones. Which framework of bones protects our spine cord?

a. Rib cage

b. Backbone

c. Pelvis

d. Skull

ANS: B

EXP: Backbone protects our spinal cord.

7. Vital organs of our body are protected by frameworks of bones. Which bone structure protects our lungs and heart?

a. Rib cage

b. Pelvis

c. Skull

d. Backbone

ANS: B

EXP: Rib cage protects our lungs and heart.

8. Skull is a very important part of the musculoskeletal system. Skull not only protects our brain but also other facial features. How many bones are there in the skull?

a. 22

b. 33

c. 44

d. 11

ANS: A

EXP: Human skull has 22 bones.

9. Human body has a number of different bones performing different functions and protecting different organs of the body. How many bones do adults have?

a. 300

b. 206

c. 260

d. 200

ANS: B

EXP: Adults have 206 bones.

10. There are a number of different bones in human body that protect different organs and perform other important functions. How many bones do children have at birth?

a. 206

b. 200

c. 300

d. 306

ANS: C

EXP: At birth children have 300 bones.

11. Skeleton can be divided into two parts: the axial skeleton and the appendicular skeleton. Which of the following is not a part of the axial skeleton?

a. The skull

b. The hyoid bone

c. The pelvis girdle

d. The ribs

ANS: C

EXP: The pelvis girdle is not a part of the axial skeleton. It is a part of the appendicular skeleton.

12. Skeleton can be divided into two parts: the axial skeleton and the appendicular skeleton. Which of the following is not a part of the appendicular skeleton?

a. The bones of the arms

b. The pectoral girdle

c. The pelvis girdle

d. The ribs

ANS: D

EXP: The ribs are not a part of the appendicular skeleton. They are a part of the axial skeleton.

13. There are eight cranial bones and two bones unite at a point called suture. So eight cranial bones form four sutures. Which of the following is not one of the four sutures?

a. The coronal

b. The lambdoidal

c. The sagittal

d. The temporal

ANS: D

EXP: The temporal is not the fourth suture. Fourth suture is the squamous.

14. Facial bones protect our eyes, muscles of face and teeth. How many facial bones are there to protect different facial features?

a. 14

b. 12

c. 13

d. 15

ANS: A

EXP: There are fourteen facial bones.

15. There are fourteen different facial bones that protect our eyes, muscles of face and teeth. Which of the following is not the name of a facial bone?

a. Vomer

b. Maxilla

c. Parietal

d. Zygomatic

ANS: C

EXP: Parietal is a cranial bone not a facial bone.

16. There are fourteen different facial bones that protect our eyes, muscles of face and teeth. Which of the following is not the name of a facial bone?

a. Lacrimal

b. Nasal

c. Inferior nasal conchae

d. Ethmoid

ANS: C

EXP: Ethmoid is a cranial bone not a facial bone.

17. The pelvis girdle is part of the appendicular skeleton. How many hip bones are there in the pelvis girdle?

a. 2

b. 3

c. 1

d. 4

ANS: A

EXP: The pelvis girdle has two hip bones.

18. Ligaments, tendons and fascia are all made up of collagen but perform different functions. Which of the following is a function of tendons?

a. Join muscles to bones

b. Join bones to bones

c. Join muscles to muscles

d. Prevent dislocation of bones

ANS: A

EXP: Tendons join Muscles to bones

19. Ligaments, tendons and fascia are all made up of collagen but perform different functions. Which of the following is a function of fascia?

a. Join muscles to bones

b. Join bones to bones

c. Join muscles to muscles

d. Prevent dislocation of bones

ANS: C

EXP: Fascia joins muscles to other muscles.

20. Ligaments, tendons and fascia are all made up of collagen but perform different functions. Which of the following is a function of ligamnets?

a. Join muscles to bones

b. Join bones to bones

c. Join muscles to muscles

d. Prevent rubbing of bones

ANS: B

EXP: Ligaments join one bone to another.

21. Different types of neurons perform different functions. Which neurons communicate signals between spinal cord and periphery?

a. Motor

b. Spinal

c. Sensory

d. Somatic

ANS: B

EXP: Spinal neurons link spinal cord and periphery.

22. Thalamus is the part of our brain that relays sensory signals. Into how many parts is the thalamus divided into?

a. 2

b. 3

c. 4

d. 5

ANS: B

EXP: Thalamus is divided into 3 parts.

23. Different parts of the brain control different functions of our body. Which part of our brain controls our sleep and alertness?

a. Thalamus

b. Hypothalamus

c. Hippocampus

d. Basal Ganglia

ANS: A

EXP: Thalamus is the part of our brain that controls our sleep and alertness.

24. There are many mild to severe neurological disorders. Which part of our brain is affected by the neurological disorder Anterograde amnesia?

a. Thalamus

b. Hippocampus

c. Hypothalamus

d. Cerebrum

ANS: B

EXP: Anterograde amnesia affects hippocampus.

25. Thalamus performs many important functions like regulating our sleep and special senses. How many types of thalamic nuclei are there?

a. 3

b. 2

c. 4

d. 1

ANS: A

EXP: There are three types of thalamic nuclei.

26. Our nervous system uses special kinds of cells to transport information among different body parts. What are these cells called?

a. Neurons

b. Protons

c. Electrons

d. Neutrons

ANS: A

EXP: Neurons are the electric cells that pass information among different body parts

27. Nervous system controls vital functions of our body. Which of the following is not a part of the nervous system?

a. Brain

b. Spinal Cord

c. Ganglia

d. Skull

ANS: D

EXP: Brain, spinal cord and ganglia are the main parts of human nervous system.

28. Neurons are the building blocks of our nervous system. How many neurons are present in the human brain?

a. 100 billion

b. 100 million

c. 1000

d. 1 million

ANS: A

EXP: On an average, human brain has 100 billion neurons.

29. Spinal cord is a very important organ of the nervous system. What is the length of spinal cord in men?

a. 45 cm

b. 45 mm

c. 45 m

d. 450 cm

ANS: A

EXP: On an average the length of spinal cord in men is 45 cm and in women is 43 cm.

30. Alzheimer's disease causes memory loss in people and is a very serious condition. Lack of which nutrient in the brain cells is said to cause AD?

a. Neuron growth factor

b. Nerve growth factor

c. Cell growth factor

d. Memory growth factor

ANS B

EXP: Lack of nerve growth factor in brain cells may cause AD.

31. Some viruses and bacteria can cause infections of the brain and spinal cord. What condition explains encephalitis?

a. Swelling of the spinal cord.

b. Swelling of the membranes surrounding brain and spinal cord.

c. Swelling of the skin.

d. Swelling of the brain tissue.

ANS: D

EXP: Encephalitis is the swelling of the brain tissue.

32. Our nervous system can be attacked by various viruses and bacteria that can cause serious infections. What condition explains Meningitis?

a. Swelling of the covering of the brain and spinal cord.

b. Swelling of the brain tissue.

c. Swelling of the spinal cord.

d. Swelling of the nerves.

ANS: A

EXP: Meningitis is the swelling of the covering of the brain and spinal cord.

33. Bacterial meningitis is the swelling of the covering of the brain and spinal cord. Which bacteria cause this serious brain infection?

a. Escherichia coli

b. Streptococcus pneumoniae and Neisseria meningitides

c. Bacillus anthracis

d. Clostridium tetani

ANS: B

EXP: Streptococcus pneumoniae and Neisseria meningitides are the leading causes of bacterial meningitis.

34. Brain and spinal cord are very sensitive body parts. They are covered by several membranes for protection. What are these membranes called?

a. Neurons

b. Nerves

c. Meninges

d. Ganglia

ANS: C

EXP: Central nervous system is protected by membranes called Meninges.

35. Nervous system can be divided into central nervous system and peripheral nervous system. In the peripheral nervous system, a mass of neurons is called ganglia. What is the mass of neurons called in the central nervous system?

a. Ganglia

b. Nuclei

c. Nerves

d. Tracts

ANS: B

EXP: A mass of neurons is called nuclei in the central nervous system.

36. Different classes of neurons carry information between different parts of body and nervous system. Which neurons connect muscles and skin to the central nervous system?

a. Motor

b. Spinal

c. Sensory

d. Somatic

ANS: D

EXP: Somatic neurons communicate between skin or muscles and central nervous system.

37. Neurons are divided into various types depending upon their function. Which neurons carry signals from sense organs to the central nervous system?

a. Cranial

b. Spinal

c. Sensory

d. Somatic

ANS: C

EXP: Sensory neurons carry signals from sense organs to Central nervous system.

38. Forebrain is the largest section of our brain consisting of the cerebrum and the diencephalon. How many lobes does cerebrum have?

a. 4

b. 3

c. 2

d. 1

ANS: A

EXP: Cerebrum has 4 lobes controlling different sides of our personality.

39. The cerebrum is divided into two hemispheres connected by nerve fibers. What are these nerve fibers known as?

a. Cerebral Cortex

b. Basal Ganglia

c. Corpus Collosum

d. White matter

ANS: C

EXP: The nerve fibers connecting two hemispheres of the cerebrum are called Corpus Collosum

40. The cerebrum in the forebrain can be divided into various layers. What is the outermost layer of the cerebrum called?

a. Cortex

b. White matter

c. Cerebral hemisphere

d. Corpus Collosum

ANS: A

EXP: The outer layer of the cerebrum is called cortex.

41. Basal ganglia is an important part of the forebrain responsible for various neurological functions. Which of these disorders is associated with basal ganglia?

a. Parkinson's disease

b. Alzheimer's disease

c. Epilepsy

d. Bell's Palsy

ANS: A

EXP: Parkinson's disease is caused due to the degeneration of the dopamine cells in basal ganglia.

42. Huntington's disease is an incurable disease of nervous system causing lack of muscle coordination. Which part of the brain is the first to be affected by this disease?

a. Basal Ganglia

b. Cerebrum

c. Cerebellum

d. Broca's Area

ANS: A

EXP: Huntington's disease firstly attacks basal ganglia and then affects other parts of the brain.

43. Human brain is divided into various parts performing distinct functions. Which part of the brain controls movement of the body?

a. Basal Ganglia

b. Cerebrum

c. Cerebellum

d. Corpus Collosum

ANS: C

EXP: Cerebellum controls muscles and movements of the body along with brainstem.

44. Forebrain is the largest part of the human brain, divided into various subparts. Which part of the forebrain controls osmoregulation and thermoregulation?

a. Thalamus

b. Hypothalamus

c. Cerebrum

d. Cerebral cortex

ANS: B

EXP: Hypothalamus of the forebrain controls osmoregulation and thermoregulation.

45. Cerebral cortex is divided into four lobes. Which one of these four lobes is important for hearing and interpretation of audio signals?

a. Temporal lobe

b. Frontal lobe

c. Occipital lobe

d. Parietal lobe

ANS: A

EXP: Temporal lobe performs the function of interpreting audio signals received from ears.

46. Cerebral cortex is divided into four lobes. Which one of these four lobes is responsible for interpreting visual signals from eyes?

a. Temporal lobe

b. Frontal lobe

c. Occipital lobe

d. Parietal lobe

ANS: C

EXP: Occipital lobe interprets visual signals received from eyes.

47. Cerebral cortex is divided into four lobes responsible for coordinating different functions of the body. Which one of these four lobes is the smallest?

a. Temporal lobe

b. Frontal lobe

c. Occipital lobe

d. Parietal lobe

ANS: C

EXP: Occipital lobe is the smallest of the four lobes.

48. Cerebral cortex is divided into four lobes responsible for coordinating different functions of the body. Which one of these four lobes is responsible for our thoughts and decisions?

a. Temporal lobe

b. Frontal lobe

c. Occipital lobe

d. Parietal lobe

ANS: B

EXP: Frontal lobe controls our thoughts and decisions, along with other vital functions.

49. Cerebral cortex is divided into four lobes responsible for coordinating different functions of the body. Damage of which one of these four lobes causes the loss of smell and taste?

a. Temporal lobe

b. Frontal lobe

c. Occipital lobe

d. Parietal lobe

ANS: B

EXP: Damage of frontal lobe can cause loss of smell or taste or sexual interest.

50. Human brain has billions of neurons carrying information in form of electric signals. What do we call the connections between these neurons?

a. Dendrites

b. Axons

c. Synapses

d. Myelin

ANS: C

EXP: The connections between neurons are called synapses.

51. Bell's Palsy causes weakness and paralysis of facial muscles due to any harm to facial cranial nerve. Which of the following is not a cause of Bell's Palsy?

a. Trauma

1. Lyme disease
2. Guillain-Barré syndrome

d. Low blood pressure

ANS: D

EXP: Bell's palsy is not caused due to low blood pressure but high blood pressure.

52. Pituitary gland is a major gland of the brain that produces several important hormones and is divided into different lobes. How many lobes does pituitary gland have?

a. 2

b. 3

c. 4

d. 5

ANS: A

EXP: Pituitary gland is divided into two lobes: Anterior pituitary and posterior pituitary.

53. Pituitary gland produces several important hormones of the brain. Which part of the brain controls the functioning of this gland?

a. Hypothalamus

b. Thalamus

c. Cerebral

d. Cerebellum

ANS: A

EXP: Hypothalamus controls the release of hormones by the pituitary gland.

54. Different parts of brain control different functions of our body. Which part controls the temperature of human body?

a. Thalamus

b. Brain Stem

c. Hypothalamus

d. Basal Ganglia

ANS: C

EXP: Hypothalamus controls our body temperature, hunger and thirst.

55. Human brain is a very complex organ consisting of several coordinating parts. Which part of the brain controls our hunger and thirst?

a. Hypothalamus

b. Thalamus

c. Cerebral

d. Cerebellum

ANS: A

EXP: Hypothalamus controls our body temperature, hunger and thirst.

56. Pituitary gland produces different hormones for controlling different functions of the body. What is the function of the hormone Prolactin produced by anterior pituitary gland?

a. Milk production in mammary glands

b. Controlling hunger and thirst

c. Controlling mood

d. Controlling body temperature

ANS: A

EXP: Prolactin hormone produced by anterior pituitary gland is responsible for milk production in mammary glands in females.

57. Anterior pituitary gland produces various hormones important for the proper functioning of human body. Which of these hormones controls reproductive function of ovaries in women and testes in men?

a. Oxytocin

b. Adrenocorticotropic hormone

c. Testosterone

d. Follicle-stimulating hormone

ANS: D

EXP: Anterior pituitary gland produces follicle-stimulating hormone that stimulates reproductive function in men and women.

58. Nervous system can be affected by numerous disorders. Which of the following disorders of the nervous system leads to the paralysis of the ipsilateral vocal cord?

a. Parkinson disease

b. Parinaud Syndrome

c. Wallenberg Syndrome

d. Tourette Syndrome

ANS: C

EXP: Wallenberg syndrome causes paralysis of ipsilateral vocal cord and makes swallowing difficult for the patient.

59. Spinal cord is a very important organ of the nervous system. What is the length of spinal cord in women?

a. 45 cm

b. 43 mm

c. 143 m

d. 50 cm

ANS: B

EXP: On an average the length of spinal cord in women is 43 cm and in men is 45 cm.

60. Lack of nutrients in the brain can cause many neurological disorders. Which neurological disorder is caused due to the lack of nerve growth factor?

a. Parkinson's disease

b. Alzheimer's disease

c. Agnosia

d. Alien hand syndrome

ANS: B

EXP: Lack of nerve growth factor in the brain causes Alzheimer's disease.

61. Several neurological disorders can affect our nervous system. Which of the following conditions is caused due to the disease Amusia?

a. Total memory loss

b. Swelling of brain tissue

c. Inability to recognize music

d. Inability to coordinate muscular movements

ANS: C

EXP: Amusia is the inability to recognize music.

62. In addition to neurons, which other cells are present in the nervous system that provide support to the nervous system?

a. Glial cells

b. Axons

c. Dendrites

d. T helper cells

ANS: A

EXP: Glial cells are present in the nervous system in addition to neurons. These cells provide support to the nervous system.

63. Nervous system has various components working together to perform several complex functions. Which cells in the nervous system provide electrical insulation to the neurons?

a. T helper cells

b. Glial cells

c. B cells

d. Merkel cells

ANS: B

EXP: Glial cells provide electrical insulation to neurons.

64. Any harm to any part of the brain and spinal cord can cause serious neurological disorders. Which disease is caused due to damage of myelin sheath of neurons in brain and spinal cord?

a. Multiple Sclerosis

b. Bell's Palsy

c. Agnosia

d. Aphasia

ANS: A

EXP: Damage to myelin sheath of neurons causes multiple sclerosis.

65. Neurons and axons need proper electrical insulation to be able to communicate with each other. Which cells or substance provides insulation to axons?

a. Myelin

b. B cells

c. White matter

d. Grey matter

ANS: A

EXP: Myelin is a fatty substance that provides insulation to axons.

66. Different neurological disorders affect different parts of the nervous system. Which of the following diseases is not associated with basal ganglia?

a. Parkinson's Disease

b. Huntington's Disease

c. Progressive Supranuclear palsy

d. Alzheimer's disease

ANS: D

EXP: Alzheimer's disease is not associated with basal ganglia. It is caused due to the lack of nerve growth factor in the brain.

67. Basal ganglia are groups of nuclei that control our movements and other vital functions. Which of the following diseases affects basal ganglia of the nervous system?

a. Bell's Palsy

b. Huntington's Disease

c. Cushing's syndrome

d. Dyslexia

ANS: B

EXP: Huntington's disease is caused due to damage of basal ganglia.

68. Different parts of our brain perform different important functions. Which part of our brain keeps our memories?

a. Hippocampus

b. Thalamus

c. Hypothalamus

d. Cerebellum

ANS: A

EXP: Hippocampus is the part of our brain that stores our memories.

69. Hippocampus is the part of our brain that keeps our memories. Due to which neurological disorder of hippocampus patients remember their remote past but cannot make new memories?

a. Dyslexia

b. Alzheimer's disease

c. Anterograde amnesia

d. Cushing's syndrome

ANS: C

EXP: Anterograde amnesia is a disease of hippocampus, due to which people remember their remote past but cannot make new memories.

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70. Thalamus part of our brain is divided into three types of nuclei. Which of the following is not a type of thalamic nuclei?

a. Relay nuclei

b. Association nuclei

c. Nonspecific nuclei

d. Raphe nuclei

ANS: D

EXP: Raphe nuclei is not a part of thalamic nuclei.

71. Which of the following systems of human body works in association with the immunity system to fight against infections?

a. Lymphatic System

b. Musculoskeletal System

c. Nervous System

d. Endocannabinoid System

ANS: A

EXP: Lymphatic system defends against infections.

72. Human body has several different organs, each performing its own distinct function. Name the largest human organ?

a. Brain

b. Skin

c. Kidneys

d. Liver

ANS: B

EXP: Skin is the largest organ of the human body.

73. Our skin provides a protective shield to the internal organs. Which of the following is not a function of skin?

a. Producing Vitamin D

b. Temperature regulation

c. Sense of touch

d. Defending against infections

ANS: D

EXP: Skin can protect us from external environmental threats but it cannot defend against infections. This job is done by lymphatic system.

74. Our skin is divided into several layers. Which of the following cells are not found in the top layer of skin called epidermis?

a. Keratinocytes

b. Langerhans cells

c. Merkel cells

d. Plasma cells

ANS: D

EXP: Plasma cells are found in the middle layer of skin called dermis.

75. Top layer of skin is called epidermis and middle layer is called dermis. Which of the following cells is not part of dermis?

a. Fibroblasts

b. Melanocytes

c. Mast cells

d. Merkel cells

ANS: D

EXP: Merkel cells are found in epidermis.

76. Skin is the largest human body organ and is divided into various layers. Which of the following is the top layer of skin?

a. Epidermis

b. Dermis

c. Medulla

d. Renal cortex

ANS: A

EXP: The top layer of skin is called epidermis.

77. Skin is the largest human body organ and is divided into various layers. Which of the following is the middle layer of skin?

a. Epidermis

b. Dermis

c. Medulla

d. Renal cortex

ANS: A

EXP: The middle layer of skin is called dermis.

78. The main function of human integumentary system is to protect inner tissues from outside environment. Which of the following is not a part of the human integumentary system?

a. Skin

b. Nails

c. Hair

d. White blood cells

ANS: D

EXP: White blood cells are not a part of the integumentary system.

79. Epiderrmis is the top layer of skin and is composed of different cells. Which of the following are the main cells of epiderrmis?

a. Keratinocytes

b. Melanocytes

c. Merkel cells

d. Langerhans' cells

ANS: A

EXP: Keratinocytes are the main cells of epidermis.

80. Leaving aside only a small portion, all of our skin is keratinized. Which part of our skin is non- keratinized?

a. Eyelashes

b. Inside lining of mouth

c. Palms

d. Armpits

ANS: B

EXP: Inside lining of our mouth is the only part of our skin that is non-keratinized.

81. In addition to several other functions of the urinary system, our kidneys also produce different hormones in the body. Which of the following hormones are not produced by the kidneys?

a. Calcitriol

b. Calcitonin

c. Renin

d. Erythropoietin

ANS: B

EXP: Human kidneys produce hormones like calcitriol, renin and erythropoietin. Calcitonin is produced by thyroid.

82. Human body produces several hormones for different purposes. What is the function of the hormone Erythropoietin produced by kidneys?

a. Red blood cell production

b. White blood cell production

c. Eliminating pathogens

d. Controlling sleep

ANS: A

EXP: Erythropoietin is responsible for red blood cell production.

83. Kidneys produce different hormones to perform different functions. Which of the following hormones are responsible for red blood cells production?

a. Calcitriol

b. Calcitonin

c. Renin

d. Erythropoietin

ANS: D

EXP: Erythropoietin is responsible for red blood cell production.

84. Kidneys are vital for the proper functioning of our urinary system. Which of these is not a function of the kidneys?

1. Filtering and removing waste from the blood
2. Hormone production
3. Controlling appetite
4. Acid balance and blood pressure balance

ANS: C

EXP: Kidneys filter and remove waste from the blood, produce hormones and balance acid and blood pressure. Our Endocannabinoid System controls and regulates the appetite, pain, memory, moods.

85. Kidneys are the central organ of human urinary system. They perform several important functions in association with other urinary system organs. Which of these is not a function of the kidneys?

a. Regulating pain

b. Producing and removing urine

c. Hormone production

d. Acid balance

ANS: A

EXP: Our Endocannabinoid System controls and regulates the appetite, pain, memory, moods and kidneys do not play any part in this process.

86. Which urinary system disorder causes enlargement of the prostate gland in men and affects the normal urinary function?

a. Proteinuria

b. Urinary incontinence

c. Urinary retention

d. Benign prostatic hyperplasia

ANS: D

EXP: Benign prostatic hyperplasia causes enlargement of prostrate and makes urinating difficult in men.

87. Bladder holds urine produced by the kidneys to be excreted from the body. How much urine can bladder hold comfortably for some time?

a. One liter

b. Half liter

c. Two liters

d. Quarter of a liter.

ANS: B

EXP: Bladder can hold half liter of urine for few hours comfortably.

88. Bladder stores urine produced by kidneys until its removal from the body. What do we call the muscles that prevent urine from leaking from the bladder?

a. Sphincters

b. Urethra

c. Masseter

d. Buccinator

ANS: A

EXP: Sphincters are the muscles that prevent urine leakage from the bladder.

89. Kidneys are the central organ of human excretory system. They excrete wastes of the body and also maintain water and ionic balance of fluids. How many kidneys do humans have?

a. 2

b. 3

c. 1

d. 4

ANS: A

EXP: Human body has 2 kidneys.

90. Different organs in the urinary system perform different functions. Which organ removes urine from the bladder in humans?

a. Prostrate

b. Urethra

c. Fallopian tube

d. Kidneys

ANS: B

EXP: Urethra is the tube that removes urine from the bladder in both men and women.

91. Nephrons are the main functional units of kidneys? How many nephrons are present in each kidney?

a. One million

b. One billion

c. One thousand

d. One hundred

ANS: There are one million nephrons in each kidney.

92. Kidneys and other parts of brain work together to secrete hormones to maintain balance of fluids of human body. Which hormone controls volume of urine?

a. Antidiuretic hormone

b. Oxytocin

c. Prolactin

d. Vasopressin

ANS: A

EXP: Antidiuretic hormone produced by posterior pituitary gland controls volume of urine.

93. Ammonia is a very poisonous substance and needs to be converted into urea to be processed by kidneys. Which organ of the body converts ammonia in blood to urea to be processed by kidneys?

a. Gall bladder

b. Liver

c. Heart

d. Brain

ANS:B

EXP: Liver converts ammonia in blood to urea.

94. It is very important to identify the symptoms of a urinary tract infection and treat it in time before it reaches an untreatable stage. Which of the following is not a symptom of urinary tract infection, Cystitis?

a. Urinary bladder inflammation

1. Painful urination
2. Frequent urination
3. Less urination

ANS: D

EXP: Less urination is not a symptom of cystitis. It causes frequent urination.

95. Several bacterium and viruses can cause several mild to severe infections of the urinary system. Which bacterium causes urinary tract infection in both men and women?

a. Escherichia coli

b. Pseudomonas aeruginosa

c. Burkholderia cenocepacia

d. Mycobacterium avium

ANS: A

EXP: Bacterium Escherichia coli cause urinary tract infection.

96. Most organs of the human body are common in both men and women but perform different functions in both. Which organ carries both semen and urine in men?

a. Urethra

b. Testes

c. Bladder

d. Prostate gland

ANS: A

EXP: Urethra is a tube that carries both urine and semen in men while in women it carries urine only.

97. Our urinary system can be affected by many different diseases. Which disease causes inflammation of urethra?

a. Urethritis

b. Arthritis

c. Pyelonephritis

d. Pyonephrosis

ANS: A

EXP: Urethritis causes inflammation of urethra.

98. Human urinary system is a complex system having different organs. Which of the following is not a part of the urinary system?

a. Kidneys

b. Urethra

c. Bladder

d. Large intestine

ANS: D

EXP: Large intestine is not a part of the excretory system but digestive system.

99. Ureters are very important to carry urine from kidneys to bladder. How many ureters are present in the urinary system?

a. 2

b. 1

c. 4

d. 3

ANS: A

EXP: There are two ureters in the urinary system.

100. Urinary system depends on various organs to perform their respective functions properly. Which organ carries urine from kidneys to bladder?

a. Ureters

b. Urethra

c. Prostrate

d. Small intestine

ANS: A

EXP: Ureters are two thin tubes that carry urine from kidneys to bladder.

101. Kidneys work hard day and night to filter huge amounts of blood. How much blood do kidneys filter each day?

a. 100 qt

b. 162 qt

c. 62 qt

d. 6.2 qt

ANS: B

EXP: Healthy kidneys filter 162 qt of blood every day.

102. Most of the organs of the human body perform more than one function. Which organ of the body maintains ionic balance of extracellular fluid?

a. Kidneys

b. Liver

c. Gall Bladder

d. Heart

ANS: A

EXP: Kidneys maintain the ionic balance of extracellular fluid in human body.

103. Most of the organs of the human body perform more than one function. Which organ of the body maintains pH and osmotic concentration of the extracellular fluid?

a. Pituitary gland

b. Kidneys

c. Thyroid

d. Heart

ANS: B

EXP: Kidneys maintain the pH and osmotic concentration of the extracellular fluid in human body.

104. In addition to filter waste from the blood, kidneys also secrete hormones for other functions. Which hormone controls the absorption of sodium by the kidneys from the blood?

a. Aldosterone

b. Oxytocin

c. Antidiuretic hormone

d. Renin

ANS: A

EXP: Aldosterone hormone secreted by kidneys controls the absorption of sodium from the blood.

105. Kidneys are divided into different parts performing different functions. Which of the following is the outer layer of kidneys?

a. Renal cortex

b. Renal pelvis

c. Medulla

d. Nephron

ANS: A

EXP: Renal Cortex is the outer layer of kidneys.

106. Human respiratory system can be divided into two parts: upper respiratory system and lower respiratory system. Which of the following organs is a part of the lower respiratory system?

a. Nasal passage

b. Pharynx

c. Larynx

d. Bronchi

ANS: D

EXP: Lower system - trachea, bronchi, lungs

107. Respiration is a continuous process carried out by the respiratory system. During the process of respiration which gas do lungs absorb from air?

e. Oxygen

f. Hydrogen

g. Carbon Monoxide

h. Carbon Dioxide

ANS: A

EXP: Lungs absorb oxygen and exhale carbon dioxide.

108. Human body needs continuous supply of air for respiration. During the process of respiration which gas do lungs exhale?

i. Oxygen

j. Hydrogen

k. Carbon Monoxide

l. Carbon Dioxide

ANS: D

EXP: Exhalation forces air out as carbon dioxide.

109. Respiratory system is divided into different parts. In which part of the respiratory system does the exchange of oxygen and carbon dioxide take place?

m. Lungs

n. Pharynx

o. Larynx

p. Bronchi

ANS: A

EXP: Exchange of oxygen and carbon dioxide takes place in the lungs.

110. During the process of respiration our lungs take in oxygen and give out carbon dioxide. By which process are the molecules of oxygen and carbon dioxide exchanged in lungs?

q. Osmosis

r. Diffusion

s. Effusion

t. Dialysis

ANS: B

EXP: Gases are exchanged in lungs by the process of diffusion.

111. Our respiratory system can be divided into upper respiratory system and lower respiratory system. Which of the following is not a part of the upper respiratory system?

u. Nasal passage

v. Pharynx

w. Larynx

x. Trachea

ANS: D

EXP: Trachea is part of the lower respiratory system.

112. Most mammals can breathe from both mouth and nose. Which mammal can only breathe through his nose and not mouth?

y. Elephant

z. Lion

aa. Horse

bb. Chimpanzee

ANS: C

EXP: Horse can only breathe through his nose and not the mouth.

113. Respiratory diseases can vary from common colds to asthma and other chronic conditions. What do we call a doctor specializing in respiratory diseases?

cc. Pulmonologist

dd. Cardiologist

ee. Ophthalmologist

ff. Oncologist

ANS: A

EXP: A Pulmonologist specializes in respiratory diseases.

114. Wind pipe and food pipe are located in the throat. Which organ prevents food from entering the wind pipe?

gg. Diaphragm

hh. Epiglottis

ii. Bronchi

jj. Alveoli

ANS: B

Exp: Epiglottis prevents food from entering the wind pipe.

115. Respiratory diseases vary from mild colds to chronic conditions that may prove fatal. Which genetic disorder blocks airways with mucus making it difficult for the patient to breathe?

kk. Cystic fibrosis

ll. Asthma

mm. Bronchitis

nn. Pneumonia

ANS: A

EXP: Cystic fibrosis is a genetic disease that blocks airways with mucus and makes it difficult for the patient to breathe.

116. Female reproductive system consists of vagina canal, cervix, uterus, fallopian tubes and ovaries. All of these parts have different functions. In which part does egg fertilization take place?

a. Uterus

b. Fallopian Tubes

c. Ovaries

d. Vagina Canal

ANS: B

EXP: Fallopian tubes are essential to the egg fertilization process. Fertilization takes place here then moves to the uterus.

117. Male and female reproductive systems produce various sex hormones. Which of the following is not a male sex hormone?

a. Follicle-stimulating hormone

b. Luteinizing hormone

c. Oxytocin

d. Gonadotropin-releasing hormone

ANS: C

EXP: Oxytocin hormone is produced in females during child birth.

118. Fallopian tubes connect ovaries to the uterus and carry fertilized egg to the uterus. Which of the following is another name of fallopian tubes?

a. Oviducts

b. Ovum

c. Vagina

d. Clitoris

ANS: A

EXP: Fallopian tubes are also called oviducts.

119. There are several external and internal organs in the reproductive system. Which of the following is an internal organ of the reproductive system?

a. Penis

b. Clitoris

c. Vulva

d. Cervix

ANS: D

EXP: Penis, Clitoris and Vulva are external organs while Cervix is an internal organ of the reproductive system.

120. Menstruation is the process by which female body sheds uterine lining in the absence of pregnancy? What is the average length of menstrual cycle?

a. 14 days

b. 28 days

c. 31 days

d. 20 days

ANS: B

EXP: Average menstrual cycle is of 28 days, though it varies from female to female.

121. Females produce various sex hormones during different reproductive cycles. Which of the following is not a female sex hormone?

a. Progesterone

b. Follicle stimulating hormone

c. Luteinizing hormone

d. Testosterone

ANS: D

EXP: Testosterone is a male sex hormone produces by testes.

122. Which out of the several female sex hormones makes uterus ready to host fertilized egg and get ready for the pregnancy?

a. Progesterone

b. Estrogen

c. Follicle stimulating hormone

d. Luteinizing hormone

ANS: A

EXP: Progesterone prepares uterus for the pregnancy.

123. Different organs of the female reproductive system perform different functions. Which of the following organs accepts fertilized ovum?

a. Fallopian Tubes

b. Uterus

c. Ovaries

d. Vagina

ANS: B

EXP: Uterus accepts fertilized ovum and nurtures it till birth.

124. Female reproductive system consists of ovaries, cervix, uterus and fallopian tubes, with each organ performing a unique function. Which of the following organs produces the hormone progesterone?

a. Ovaries

b. Fallopian tubes

c. Cervix

d. Vulva

ANS: A

EXP: Ovaries produce hormones progesterone and estrogen.

125. Different parts of female reproductive system like vagina canal, cervix, uterus, fallopian tubes and ovaries have different functions. In which part are ova produced?

a. Uterus

b. Fallopian Tubes

c. Ovaries

d. Vagina Canal

ANS: C

EXP: Ovaries are where ova are produced through ovulation.

126. Ovaries are one of the main organs of the female reproductive system. What is the process of egg production by ovaries called?

a. Ovulation

b. Fertilization

c. Menstruation

d. Reproduction

ANS: A

EXP: Ovaries are where ova are produced through ovulation.

127. Female reproductive system consists of several organs and each organ performs a distinct function. Which of the following organs produces the hormone estrogen?

a. Uterus

b. Ovaries

c. Cervix

d. Vulva

ANS: B

EXP: Ovaries are where ova are produced through ovulation. And estrogen is produced.

128. Male and female reproductive systems consist of several organs and hormones. Which of the following hormones is produced by testicles in males?

a. Estrogen

b. Testosterone

c. Progesterone

d. Dopamine

ANS: B

EXP: Male testicles produce the hormone Testosterone.

129. Reproductive system in males has testes, penis and scrotum. How many testicles are present in male reproductive system?

a. 2

b. 1

c. 0

d. 4

ANS: A

EXP: Normally male reproductive system has 2 testicles.

130. Reproductive system in males has several internal and external organs. Which of the following is an external organ?

a. Testes

b. Scrotum

c. Urethra

d. Prostate gland

ANS: B

EXP: Scrotum is an external organ which contains testes in males.

131. Male reproductive system has different internal and external organs. Which part of the system produces sperms?

a. Testes

b. Penis

c. Urethra

d. Prostate Gland

ANS: A

EXP: Testes in men produce sperms.

132. Fertilized ovum travels to the uterus through fallopian tubes. What is the name of the process by which the fertilized ovum attaches itself to uterus?

a. Fertilization

b. Implantation

c. Reproduction

d. Menstruation

ANS: B

EXP: The process by which the fertilized ovum attaches itself to uterus is called implantation.

133. Rapid changes occur in the fertilized ovum within few days of conception turning it into an embryo. After how many days of conception does the heart of the embryo starts beating?

a. 3 -5 days

b. 18-21 days

c. 9-10 days

d. 30-32 days

ANS: B

EXP: Embryo's heart starts beating after 18-21 days of conception.

134. Sperms cover a long journey travelling from a man's penis to woman's vagina. For how many days can sperms survive after entering a woman's vagina?

a. 3-5 days

b. 1 week

c. 1 -2 days

d. 1 month

ANS: A

EXP: Sperms can survive for 3-5 days after entering a woman's vagina.

135. A man releases millions of sperms in a woman's vagina during intercourse. How many of these sperms reach the fallopian tubes?

a. 1-2

b. 1 million

c. 2000

d. 200

ANS: C

EXP: Out of the million sperms only 2000 can survive the journey to the fallopian tubes.

136. Many hormonal changes occur in the body when a fertilized ovum implants itself to the uterus. Which hormone, produced by the fertilized ovum after implantation, prevents the levels of progesterone from dropping?

a. Human Chorionic Gonadotrophin (H.C.G.)

b. Estrogen

c. Testosterone

d. Luteinizing hormone

ANS: A

EXP: Fertilized ovum produces HCG to signal the ovaries not to let the levels of progesterone drop.

137. Pregnancy tests detect the presence of which hormone in the urine of a woman to assure whether she is pregnant or not?

a. Human Chorionic Gonadotrophin (H.C.G.)

b. Estrogen

c. Testosterone

d. Luteinizing hormone

ANS: A

EXP: Pregnancy tests detect the presence of HCG in the urine of a woman to tell whether she is pregnant or not.

138. Testes in males produce thousands of sperms every minute. In which part of the male reproductive system do these sperms mature?

a. Testes

b. Epididymis

c. Penis

d. Urethra

ANS: B

EXP: Sperms produced by testes mature in epididymis.

139. Ovaries in women are vital for egg production, hormone production and reproduction. How many ovaries does a healthy woman have?

a. 2

b. 1

c. 4

d. 6

ANS: A

EXP: A healthy woman has two ovaries.

140. Several changes take place in a girl's body at puberty. Which hormone is responsible for her breast development and hair growth?

a. Estrogen

b. Testosterone

c. Progesterone

d. Human Chorionic Gonadotrophin (H.C.G.)

ANS: A

EXP: Estrogen leads to breast development and hair growth in girls at puberty.

141. Fetus developing in mother's womb needs proper nutrition and protection from unwanted waste. Which organ in the uterus supplies nutrients from mother's blood to the growing fetus?

a. Umbilical cord

b. Placenta

c. Amniotic fluid

d. Uterine wall

ANS: B

EXP: Placenta supplies nutrients from mother's blood to the fetus and removes any waste.

142. Females store eggs in their ovaries to be used for their lifetime. At what stage do females stop releasing these eggs for reproduction?

a. Puberty

b. Childhood

c. Senior age

d. Menopause

ANS: D

EXP: The time females stop releasing eggs is called menopause.

143. Females have all their eggs in their ovaries at the time of birth and start releasing them at puberty. After how many days is an egg released from the ovary?

a. 28-32 days

b. 6-7 days

c. 1-2 days

d. 60-70 days

ANS: A

EXP: An egg is released from the ovary every 28-32 days.

144. Female reproductive system consists of many different organs performing different functions. In which organ does the baby develop?

a. Fallopian tubes

b. Ovary

c. Cervix

d. Uterus

ANS: D

EXP: Fertilized ovum develops into a baby in the uterus.

145. Female reproductive system consists of vagina canal, uterus, fallopian tubes and ovaries. Which part connects vagina to the uterus?

a. Cervix

b. Fallopian Tubes

c. Clitoris

d. Urethra

ANS: A

EXP: Cervix connects vagina to the uterus.

146. Sexual intercourse is necessary for reproduction in humans. In which organ of the female reproductive system is penis inserted during sexual intercourse?

a. Cervix

b. Vagina

c. Clitoris

d. Vulva

ANS: B

EXP: During sexual intercourse, man inserts his penis into the vagina of woman.

147. Development of fertilized ovum into a baby in uterus is a long journey. What is the average duration of gestation in women?

a. 40 weeks

b. 20 weeks

c. 60 weeks

d. 13 weeks

ANS: A

EXP: Average duration of gestation in women is 40 weeks.

148. Fallopian tubes connect ovaries to the uterus and carry fertilized ovum to the uterus. How many fallopian tubes are present in a healthy female?

a. 2

b. 3

c. 4

d. 6

ANS:A

EXP: A healthy female has 2 fallopian tubes.

149. In normal pregnancy fertilized ovum implants itself in the uterus. Where does the fertilized ovum implant itself in ectopic pregnancy?

a. Cervix

b. Uterus

c. Fallopian tubes

d. Vagina

ANS: C

EXP: In ectopic pregnancy, fertilized ovum implants itself in fallopian tubes.

150. Fallopian tubes are very important for reproduction. Blockage of these tubes can result in infertility. Which radiology technique is used to determine the normal functioning of fallopian tubes?

a. X-ray

b. Ultrasound

c. Hysterosalpingography

d. MRI

ANS: c

EXP: Hysterosalpingography is used to determine whether fallopian tubes are blocked or not.

151. Blockage of fallopian tubes in a woman can cause infertility. Which surgical procedure is used to treat the blockage of fallopian tubes?

a. Salpingectomy

b. Tuboplasty

c. Salpingo-oophorectomy

d. Splenectomy

ANS: B

EXP: The surgical procedure used to treat the blockage of fallopian tubes is called tuboplasty.

152. Several sexual infections can lead to cancers of reproductive organs. Which test is used to detect cervical cancer and other abnormalities of cervix?

a. Blood test

b. Urine test

c. Pelvic exam

d. Pap Smear

ANS: D

EXP: Pap smear is a special test that can detect cervical cancer in women.

153. A number of bacteria and virus cause many sexually transmitted diseases in humans. Which virus causes cervical cancer in women?

a. Molluscum contagiosum virus

b. Human papillomavirus

c. Human Immunodeficiency Virus

d. Herpes simplex virus

ANS: B

EXP: Cervical cancer is caused by Human papillomavirus.

154. Gonorrhea is a very common sexually transmitted disease in both men and women. Which bacterium causes gonorrhea?

a. Human papillomavirus

b. Neisseria gonorrhoeae

c. Treponema pallidum

d. Klebsiella granulomatis

ANS: B

EXP: Gonorrhea is caused by bacterium Neisseria gonorrhoeae.

155. Chlamydia is a very serious sexually transmitted disease that can cause permanent infertility in women and men. Which bacterium causes this disease?

a. Chlamydia trachomatis

b. Human papillomavirus

c. Treponema pallidum

d. Klebsiella granulomatis

ANS: A

EXP: Chlamdiya is caused by bacterium Chlamydia trachomatis.

156. Several bacteria and viruses can cause mild to serious infections in men and women. Which sexually transmitted disease is caused by bacterium Chlamydia trachomatis?

a. Chancroid

b. Chlamydia

c. Candidiasis

d. Granuloma inguinale

ANS: B

EXP: Bacterium Chlamydia trachomatis causes disease Chlamydia.

157. Different bacteria, viruses and parasites can attack male and female reproductive system and cause mild to serious infections.Which sexually transmitted disease is caused by bacterium Neisseria gonorrhoeae?

a. Chancroid

b. Gonorrhea

c. Candidiasis

d. Granuloma inguinale

ANS: B

EXP: Bacterium Neisseria gonorrhoeae causes Gonorrhea.

158. Infectious bacteria and parasites can attack male and female reproductive organs and cause infections. Which sexually transmitted disease is caused by bacterium Haemophilus ducreyi?

a. Chancroid

b. Candidiasis

c. Vulvar Cancer

d. Trichomoniasis

ANS: A

EXP: Bacterium Haemophilus ducreyi causes Chancroid. Chancroid usually attacks the labia majora in women.

159. Many mild to serious sexually transmitted diseases can occur in men and women. Which sexually transmitted disease is caused by bacterium Klebsiella granulomatis?

a. Donovanosis

b. Candidiasis

c. Tinea cruris

d. Trichomoniasis

ANS: A

EXP: Bacterium Klebsiella granulomatis causes Donovanosis, a disease accompanied by lesions in genital area.

160. Sexually transmitted diseases must be treated in time in both men and women to prevent serious consequences. Which sexually transmitted disease is caused by bacterium Treponema pallidum?

a. Scabies

b. Gonorrhea

c. Syphilis

d. Trichomoniasis

ANS: C

EXP: Bacterium Treponema pallidum causes Syphilis. Syphilis must treated properly, otherwise it can spread to other parts of the body.

161. Estrogen is one of the main sex hormones in women produced by ovaries. Which of the following is not a symptom of estrogen deficiency in women?

a. Night sweats

b. Vaginal dryness

c. Dry eyes

d. Increased saliva production

ANS:D

EXP: Increased saliva production is not a sign of estrogen deficiency in women. Other sings include depression, mood swings and sagging breasts.

162. Estrogen is a very important sex hormone in women responsible for breast development and menstruation. In addition to ovaries, which other organ produces sex hormone estrogen in women?

a. Uterus

b. Placenta

c. Fallopian tubes

d. Umbilical cord

ANS: B

EXP: In addition to ovaries, placenta also produces estrogen during pregnancy in women.

163. Sex hormones play a very important role in the development and regulation of reproductive organs in both men and women. Lack of which sex hormone in women leads to vaginal dryness?

a. Progesterone

b. Estrogen

c. Testosterone

d. Oxytocin

ANS: Estrogen is responsible for vaginal lubrication in women and can cause vaginal dryness when deficient.

164. Sex hormones in women play a major role in sexual and reproductive activities. Which hormone in women helps in labor and child birth?

a. Progesterone

b. Estrogen

c. Testosterone

d. Oxytocin

ANS:D

EXP: Oxytocin is produced during child birth in women. It facilitates dilation of the cervix and causes uterine contractions during labor.

165. Which hormone in women causes uterine contractions during labor?

a. Progesterone

b. Oxytocin

c. Estrogen

d. Testosterone

ANS: B

EXP: Oxytocin is produced during child birth in women. It facilitates dilation of the cervix and causes uterine contractions during labor.

166. Plants make their food from sunlight. Which of the following compounds converts sunlight into food for plants?

a. Proteins

b. Chlorophyll

c. Carbon dioxide

d. Water

ANS: B

EXP: Chlorophylls are the pigments that absorb sunlight and convert it into food for plants.

167. Photosynthesis is the process by which plants manufacture their food. Which gas do plants produce during this process?

a. Carbon dioxide

b. Oxygen

c. Ozone

d. Nitrogen

ANS: B

EXP: Plants inhale carbon dioxide and produce oxygen during photosynthesis.

168. Mitosis is the process by which a cell divides into identical smaller cells. Mitosis has several phases. Which of the following is the last phase of mitosis?

a. Interphase

b. Prophase

c. Telophase

d. Metaphase

ANS: C

EXP: The order of phases in mitosis is Interphase, Prophase, Prometaphase, Metaphase, Anaphase and Telophase.

169. Process of Photosynthesis is vital for the survival for plants. Which of the following are the end products of photosynthesis?

a. Sugars and oxygen

b. Carbon dioxide and water

c. Sugars and Carbon dioxide

d. Sugars and water

ANS: A

EXP: Sugars and oxygen are the end products of photosynthesis.

170. Chloroplasts contain chlorophyll, a compound necessary for photosynthesis. How many chloroplasts are typically present in plant cells?

a. 10-100

b. 100-1000

c. 1000-10000

d. 1- 10

ANS: A

EXP: Plant cells may have 10-100 chloroplasts.

171. Photosynthesis is the process by which plants produce energy. In which form is this energy stored?

a. Proteins

b. Sugars

c. Chemical compounds

d. Acids

ANS: B

EXP: Plants store energy produced during photosynthesis as sugars.

172. Besides which other component is very important for photosynthesis to happen or without which photosynthesis cannot take place?

a. Sunlight

b. Oxygen

c. Water

d. Starch

ANS: A

EXP: Carbon dioxide is converted into food and oxygen in the presence of sunlight. Photosynthesis cannot take place in the absence of light.

173. A plant leaf has several smaller parts or cells. Which part of the plant leaves absorbs sunlight for the process of photosynthesis?

a. Stroma

b. Granum

c. Chlorophyll

d. Mesophyll cells

ANS: C

EXP: Chlorophyll catches sunlight during photosynthesis to manufacture food.

174. What raw materials do plants use during the process of photosynthesis to produce energy?

a. Sugars and oxygen

b. Carbon dioxide and water

c. Carbon dioxide and sunlight

d. Sunlight and oxygen

ANS: C

EXP: Plants process carbon dioxide in the presence of sunlight to produce energy.

175. Mitosis is the process by which a cell divides into identical smaller cells and has several phases. Which of the following is the first phase of mitosis?

a. Interphase

b. Prophase

c. Telophase

d. Metaphase

ANS: A

EXP: The order of phases in mitosis is Interphase, Prophase, Prometaphase, Metaphase, Anaphase and Telophase.

176. Momentum of an object depends upon its mass and velocity. Calculate the momentum of an object with mass 15 Kg moving at a velocity of 9 m/s?

a. 135 Kg-m/s

b. 45 Kg-m/s

c. 190 Kg-m/s

d. 35 Kg-m/s

ANS: A

EXP: Momentum = mass x velocity

177. All objects in motion have a momentum. On which of the following factors does the momentum of an object depends?

a. Mass, velocity

b. Mass, acceleration

c. Velocity, time

d. Time, distance

ANS: A

EXP: Momentum of an object depends upon its mass and velocity.

178. Speed of an object depends upon the distance traveled in a given time. Calculate the speed of a vehicle which covered a distance of 250 km in 4 hours?

a. 254 km/hr

b. 1000 km/hr

c. 62.5 km/hr

d. 162.5 km/hr

ANS: C

EXP: Speed = distance / time

179. Distance covered by a moving object is determined by its speed and time taken. Calculate the distance travelled by a vehicle moving at a speed of 300 km/hr in 23 hours?

a. 6900 km

b. 323 km

c. 277 km

d. 5677 km

ANS: A

EXP: Distance = Speed x time

180. Boiling point of water on Celsius or Centigrade scale of temperature is 100 °C. Calculate this value on Fahrenheit scale?

a. 212 °F

b. 112 °F

c. 132 °F

d. 122 °F

ANS: A

EXP: Fahrenheit [°F] = [°C] × 9/5 + 32

181. SI unit of mass is Kg and SI unit of velocity is m/s. Give the SI unit of momentum based on the relationship of momentum with mass and velocity?

a. Kg/ms

b. ms/Kg

c. Kg-ms

d. Kg-m/s

ANS: D

EXP: Momentum = mass x velocity

182. Freezing point of water on Celsius or Centigrade scale of temperature is 0 °C. Calculate this value on Fahrenheit scale?

a. 12 °F

b. 112 °F

c. 32 °F

d. 132 °F

ANS: C

EXP: Fahrenheit [°F] = [°C] × 9/5 + 32

183. Freezing point of water on Fahrenheit scale is 32 °F. Calculate this value on Celsius or Centigrade scale of temperature?

a. 0 °C

b. -10 °C

c. 100 °C

d. 5 °C

ANS: A

EXP: Celsius [°C] = ([°F] - 32) × 5/9

184. Boiling point of water on Fahrenheit scale is 212 °F. Calculate this value on Celsius or Centigrade scale of temperature?

a. 0 °C

b. 10 °C

c. 100 °C

d. 50 °C

ANS: C

EXP: Celsius [°C] = ([°F] - 32) × 5/9

185. Temperature of a room is 68 °F. Calculate this value on Celsius or Centigrade scale of temperature?

a. 36 °C

b. 10 °C

c. 21 °C

d. 20 °C

ANS: C

EXP: Celsius [°C] = ([°F] - 32) × 5/9

186. Temperature of a room on Celsius or Centigrade scale of temperature is 35 °C. Calculate this value on Fahrenheit scale?

a. 95 °F

b. 80 °F

c. 32 °F

d. 75 °F

ANS: A

EXP: Fahrenheit [°F] = [°C] × 9/5 + 32

187. According to the Kinetic Theory of matter, matter is composed of small particles called atoms. What is the state of these atoms?

a. They stay fixed at their places

b. They move constantly in random motions

c. They move constantly in regular motions

d. They move occasionally

ANS: B

EXP: According to the Kinetic theory of matter atoms move randomly and constantly.

188. Which theory states that matter is composed of atoms that move constantly in random motions?

a. Kinetic theory of matter

b. Newton's law

c. Law of Conservation of Matter

d. Avogadro's law

ANS: A

EXP: According to the Kinetic theory of matter atoms constantly in random motions.

189. An object's mass and velocity give its momentum. Calculate the momentum of an object with mass 23 Kg moving at a velocity of 89 m/s?

a. 2047 Kg-m/s

b. 147 Kg-m/s

c. 1077 Kg-m/s

d. 112 Kg-m/s

ANS: A

EXP: Momentum = mass x velocity

190. Acceleration is calculated as the change in velocity per unit of time. If a car reaches a speed (velocity) of 500 m/s in 20 s. Calculate the acceleration produced?

a. 10 m/s²

b. 100 m/s²

c. 1000 m/s²

d. 250 m/s²

ANS: A

EXP: Acceleration= Change in Velocity / time

191. Acceleration is defined as the change in velocity per unit of time. If a car is running at a speed of 100 m/s. What is the constant acceleration driver needs to reach a speed of 200 m/s in next 10 seconds?

a. 5 m/s²

b. 10 m/s²

c. 1 m/s²

d. 20 m/s²

ANS: B

EXP: Acceleration= Change in Velocity / time

192. If a bike is running at a speed of 150 m/s. Calculate the negative acceleration for car to come to a halt in 5 s?

a. .02 m/s²

b. 750 m/s²

c. 30 m/s²

d. 1 m/s²

ANS: C

EXP: Acceleration= Change in Velocity / time

193. If a car is running at a speed of 50 miles/hr. Calculate the time taken by the car to come to a halt if a negative acceleration of 1500 miles/hr2 is applied on it?

a. 5 s

b. 10 s

c. 5 min

d. 10 min

ANS: C

EXP: Acceleration= Change in Velocity / time

194. If a bicycle rider is riding at a speed of 10 m/s. Calculate the time taken by the biker to reach a velocity of 20 m/s with an acceleration of 5 m/s²?

a. 2 s

b. 5 s

c. 10 s

d. 1 s

ANS: A

EXP: Acceleration= Change in Velocity / time

195. A sprinter starts from his mark. Calculate the time the sprinter requires reaching a speed of 150 m/s at an acceleration of 5 m/s²?

a. 30 s

b. 10 s

c. 750 s

d. 5 s

ANS: A

EXP: Acceleration= Change in Velocity / time