STRUCTURAL ORGANISATION IN ANIMALS MCQS QUESTION FOR PRACTICE| NEET
MCQ ON STRUCTURAL ORGANISATION IN ANIMALS WITH SOLUTION AND EXPLAINATION FOR PRACTICE WHICH WILL HELP YOU IN YOUR NEET PREPARATION.
STRUCTURAL ORGANISATION IN ANIMALS
here are 100 multiple-choice questions (MCQs) on the structural organization in animals along with answers.
1. Which of the following is not a type of animal tissue?
a) Connective tissue
b) Nervous tissue
c) Muscular tissue
d) Stomatal tissue
Answer: d) Stomatal tissue
Explanation: Stomatal tissue is found in plants, not animals.
2. The outermost layer of the skin is called:
a) Dermis
b) Epidermis
c) Hypodermis
d) Mesodermis
Answer: b) Epidermis
Explanation: The epidermis is the outermost layer of the skin in animals.
3. Cartilage is an example of which type of tissue?
a) Epithelial tissue
b) Connective tissue
c) Nervous tissue
d) Muscular tissue
Answer: b) Connective tissue
Explanation: Cartilage is a type of connective tissue found in animals.
4. Which of the following is not a function of the skeletal system?
a) Support
b) Protection
c) Blood cell formation
d) Digestion
Answer: d) Digestion
Explanation: The skeletal system supports the body, protects internal organs, and is involved in blood cell formation, but it is not directly involved in digestion.
5. What is the functional unit of the nervous system?
a) Neuron
b) Nephron
c) Nucleus
d) Neurotransmitter
Answer: a) Neuron
Explanation: Neurons are the cells that transmit information in the nervous system.
6. Which of the following is not a component of blood?
a) Red blood cells
b) White blood cells
c) Platelets
d) Chondrocytes
Answer: d) Chondrocytes
Explanation: Chondrocytes are cells found in cartilage, not in blood.
7. Which organ is responsible for filtering blood and producing urine in animals?
a) Liver
b) Kidney
c) Pancreas
d) Spleen
Answer: b) Kidney
Explanation: The kidneys are responsible for filtering blood and producing urine in animals.
8. Which of the following is not a part of the digestive system?
a) Stomach
b) Liver
c) Lungs
d) Small intestine
Answer: c) Lungs
Explanation: The lungs are part of the respiratory system, not the digestive system.
9. What is the main function of the respiratory system?
a) Circulation of blood
b) Regulation of body temperature
c) Exchange of gases
d) Production of hormones
Answer: c) Exchange of gases
Explanation: The respiratory system is responsible for the exchange of oxygen and carbon dioxide between the body and the environment.
10. Where does gas exchange occur in the respiratory system of mammals?
a) Trachea
b) Bronchi
c) Alveoli
d) Diaphragm
Answer: c) Alveoli
Explanation: Gas exchange occurs in the alveoli, tiny air sacs in the lungs.
11. What is the function of red blood cells?
a) Transport oxygen
b) Fight infection
c) Clot blood
d) Produce hormones
Answer: a) Transport oxygen
Explanation: Red blood cells contain haemoglobin, which binds to oxygen and transports it throughout the body.
12. Which of the following is not a type of muscle tissue?
a) Skeletal muscle
b) Smooth muscle
c) Striated muscle
d) Cardiac muscle
Answer: c) Striated muscle
Explanation: Striated muscle is another name for skeletal and cardiac muscle, both of which have a striped appearance under a microscope.
13. Which of the following is not a sense organ?
a) Eye
b) Ear
c) Nose
d) Liver
Answer: d) Liver
Explanation: The liver is not a sense organ; it is a vital organ involved in various metabolic processes.
14. What is the function of the endocrine system?
a) Regulation of body temperature
b) Coordination of body movements
c) Control of growth and development
d) Digestion of food
Answer: c) Control of growth and development
Explanation: The endocrine system regulates various physiological processes, including growth and development, through the release of hormones.
15. Which gland is known as the “master gland”?
a) Thyroid gland
b) Adrenal gland
c) Pituitary gland
d) Pancreas
Answer: c) Pituitary gland
Explanation: The pituitary gland is often referred to as the “master gland” because it controls the function of other endocrine glands in the body.
16. Which of the following is not a part of the female reproductive system?
a) Ovary
b) Testis
c) Uterus
d) Vagina
Answer: b) Testis
Explanation: The testis is part of the male reproductive system; ovaries are part of the female reproductive system.
17. What is the function of the ovaries?
a) Produce eggs
b) Produce testosterone
c) Produce estrogen
d) Produce insulin
Answer: a) Produce eggs
Explanation: The ovaries are responsible for producing eggs (ova) in females.
18. Which of the following is not a function of the urinary system?
a) Regulation of blood pressure
b) Regulation of electrolyte balance
c) Filtration of blood
d) Production of red blood cells
Answer: d) Production of red blood cells
Explanation: The production of red blood cells is primarily controlled by the bone marrow, not the urinary system.
19. What is the primary function of the liver in the digestive system?
a) Absorption of nutrients
b) Production of bile
c) Secretion of insulin
d) Regulation of body temperature
Answer: b) Production of bile
Explanation: The liver produces bile, which is involved in the digestion and absorption of fats.
20. Which of the following is not a part of the central nervous system?
a) Brain
b) Spinal cord
c) Nerves
d) None of the above
Answer: c) Nerves
Explanation: Nerves are part of the peripheral nervous system; the central nervous system includes the brain and spinal cord.
21. Which of the following structures is responsible for producing sound in mammals?
a) Vocal cords
b) Larynx
c) Trachea
d) Pharynx
Answer: a) Vocal cords
Explanation: Vocal cords, located in the larynx, vibrate to produce sound in mammals.
22. What is the function of the lymphatic system?
a) Circulation of blood
b) Digestion of food
c) Defense against pathogens
d) Regulation of body temperature
Answer: c) Defense against pathogens
Explanation: The lymphatic system plays a crucial role in the body’s immune response by defending against pathogens and foreign substances.
23. Which of the following is not a component of the lymphatic system?
a) Lymph nodes
b) Spleen
c) Liver
d) Thymus
Answer: c) Liver
Explanation: The liver is not part of the lymphatic system; it is a vital organ involved in various metabolic processes.
24. Which of the following is not a function of the integumentary system?
a) Protection against physical damage
b) Regulation of body temperature
c) Production of hormones
d) Sensory perception
Answer: c) Production of hormones
Explanation: The integumentary system is primarily responsible for protection, temperature regulation, and sensory perception; hormone production is primarily controlled by the endocrine system.
25. What is the function of the cerebellum in the brain?
a) Regulation of body temperature
b) Coordination of movement
c) Memory and learning
d) Vision processing
Answer: b) Coordination of movement
Explanation: The cerebellum is responsible for coordinating voluntary movements and maintaining posture and balance.
26. Which of the following is not a function of the skeletal system?
a) Protection of internal organs
b) Production of red blood cells
c) Regulation of body temperature
d) Storage of minerals
Answer: c) Regulation of body temperature
Explanation: While the skeletal system plays a role in maintaining body temperature through shivering, its primary functions include support, protection, movement, and blood cell production.
27. What is the function of the cornea in the eye?
a) Regulation of light intensity
b) Accommodation for near vision
c) Protection and focusing of light
d) Production of tears
Answer: c) Protection and focusing of light
Explanation: The cornea is the transparent outer layer of the eye that protects the eye and helps to focus light onto the retina.
28. Which of the following is not a part of the male reproductive system?
a) Testis
b) Urethra
c) Ovary
d) Prostate gland
Answer: c) Ovary
Explanation: The ovary is part of the female reproductive system; the testis, urethra, and prostate gland are part of the male reproductive system.
29. What is the function of the Eustachian tube?
a) Regulation of blood pressure
b) Regulation of body temperature
c) Equalization of pressure in the middle ear
d) Secretion of hormones
Answer: c) Equalization of pressure in the middle ear
Explanation: The Eustachian tube connects the middle ear to the nasopharynx and helps equalize air pressure on both sides of the eardrum.
30. Which of the following structures is responsible for the production of sperm in males?
a) Epididymis
b) Vas deferens
c) Seminal vesicle
d) Testis
Answer: d) Testis
Explanation: The testes are responsible for producing sperm through the process of spermatogenesis.
31. Which of the following is not a type of connective tissue?
a) Bone
b) Adipose tissue
c) Cardiac tissue
d) Blood
Answer: c) Cardiac tissue
Explanation: Cardiac tissue is a type of muscle tissue, not connective tissue.
32. What is the function of the gallbladder in the digestive system?
a) Production of bile
b) Storage and concentration of bile
c) Secretion of insulin
d) Absorption of nutrients
Answer: b) Storage and concentration of bile
Explanation: The gallbladder stores and concentrates bile produced by the liver until it is needed for digestion.
33. Which of the following is not a part of the peripheral nervous system?
a) Brain
b) Spinal nerves
c) Cranial nerves
d) Autonomic nerves
Answer: a) Brain
Explanation: The peripheral nervous system includes nerves outside the brain and spinal cord, such as spinal nerves, cranial nerves, and autonomic nerves.
34. What is the function of the cochlea in the ear?
a) Equalization of pressure
b) Detection of sound vibrations
c) Regulation of balance
d) Regulation of body temperature
Answer: b) Detection of sound vibrations
Explanation: The cochlea is a spiral-shaped structure in the inner ear responsible for detecting sound vibrations and transmitting them to the brain.
35. Which of the following is not a function of the lymphatic system?
a) Absorption of dietary fats
b) Transportation of white blood cells
c) Removal of excess fluid from tissues
d) Production of digestive enzymes
Answer: d) Production of digestive enzymes
Explanation: The lymphatic system is primarily involved in immunity, fluid balance, and the absorption of fats; the production of digestive enzymes is carried out by the digestive system.
36. What is the function of the trachea in the respiratory system?
a) Gas exchange
b) Regulation of airflow
c) Protection of the lungs
d) Production of mucus
Answer: b) Regulation of airflow
Explanation: The trachea, or windpipe, helps regulate airflow to and from the lungs and is lined with cilia that help remove mucus and foreign particles.
37. Which of the following is not a function of the pancreas?
a) Regulation of blood sugar levels
b) Production of digestive enzymes
c) Production of insulin
d) Storage of bile
Answer: d) Storage of bile
Explanation: The pancreas produces digestive enzymes and hormones such as insulin and glucagon but does not store bile; bile is stored in the gallbladder.
38. Which of the following is not a component of the central nervous system?
a) Brain
b) Spinal cord
c) Nerves
d) None of the above
Answer: c) Nerves
Explanation: Nerves are part of the peripheral nervous system; the central nervous system consists of the brain and spinal cord.
39. Which of the following is not a function of the spleen?
a) Filtration of blood
b) Production of red blood cells
c) Storage of blood
d) Removal of old or damaged red blood cells
Answer: b) Production of red blood cells
Explanation: While the spleen plays a role in filtering blood and removing old or damaged red blood cells, it does not produce red blood cells; red blood cell production primarily occurs in the bone marrow.
40. What is the function of the adrenal glands?
a) Regulation of blood sugar levels
b) Production of adrenaline and cortisol
c) Regulation of blood pressure
d) Production of bile
Answer: b) Production of adrenaline and cortisol
Explanation: The adrenal glands produce hormones such as adrenaline and cortisol, which are involved in the body’s response to stress, regulation of blood sugar levels, and regulation of blood pressure.
41. Which of the following is not a component of the eye?
a) Retina
b) Sclera
c) Meninges
d) Cornea
Answer: c) Meninges
Explanation: The meninges are protective membranes that surround the brain and spinal cord, not components of the eye.
42. What is the function of the alveoli in the respiratory system?
a) Regulation of airflow
b) Gas exchange
c) Production of mucus
d) Protection of the lungs
Answer: b) Gas exchange
Explanation: Alveoli are tiny air sacs in the lungs where gas exchange occurs, allowing oxygen to enter the bloodstream and carbon dioxide to be removed from the body.
43. Which of the following is not a type of joint found in the skeletal system?
a) Ball and socket joint
b) Hinge joint
c) Pivot joint
d) Cartilaginous joint
Answer: d) Cartilaginous joint
Explanation: Cartilaginous joints are a type of joint found in the skeletal system, connecting bones with cartilage; other types of joints include ball and socket, hinge, and pivot joints.
44. What is the function of the semicircular canals in the ear?
a) Regulation of blood pressure
b) Detection of sound vibrations
c) Regulation of balance
d) Equalization of pressure
Answer: c) Regulation of balance
Explanation: The semicircular canals are part of the inner ear and are responsible for detecting changes in head position and rotational movements, helping to maintain balance and equilibrium.
45. Which of the following is not a function of the cardiovascular system?
a) Transportation of nutrients
b) Transportation of oxygen
c) Transportation of waste products
d) Production of enzymes
Answer: d) Production of enzymes
Explanation: The cardiovascular system is responsible for transporting nutrients, oxygen, and waste products throughout the body, but it does not produce enzymes; enzyme production primarily occurs in various organs and tissues.
46. Which of the following is not a component of the digestive system?
a) Liver
b) Esophagus
c) Trachea
d) Large intestine
Answer: c) Trachea
Explanation: The trachea is part of the respiratory system, not the digestive system.
47. What is the function of the seminiferous tubules in males?
a) Production of sperm
b) Production of testosterone
c) Secretion of hormones
d) Absorption of nutrients
Answer: a) Production of sperm
Explanation: The seminiferous tubules are coiled structures within the testes where spermatogenesis occurs, leading to the production of sperm.
48. Which of the following is not a function of the circulatory system?
a) Transportation of oxygen
b) Transportation of hormones
c) Regulation of body temperature
d) Transportation of nutrients
Answer: c) Regulation of body temperature
Explanation: While the circulatory system plays a role in distributing heat throughout the body, its primary functions include transporting oxygen, nutrients, hormones, and waste products.
49. Which of the following is not a component of the endocrine system?
a) Adrenal gland
b) Pancreas
c) Heart
d) Thyroid gland
Answer: c) Heart
Explanation: The heart is part of the cardiovascular system, not the endocrine system.
50. What is the function of the urethra in the urinary system?
a) Filtration of blood
b) Production of urine
c) Transportation of urine
d) Absorption of water
Answer: c) Transportation of urine
Explanation: The urethra is a tube that carries urine from the bladder to the outside of the body during urination.
51. Which of the following is not a type of neuron?
a) Sensory neuron
b) Motor neuron
c) Hormonal neuron
d) Interneuron
Answer: c) Hormonal neuron
Explanation: Neurons transmit electrical signals in the nervous system; sensory neurons carry information from sensory receptors to the central nervous system, motor neurons carry signals from the central nervous system to muscles and glands, and interneurons connect sensory and motor neurons within the central nervous system.
52. What is the function of the iris in the eye?
a) Regulation of light intensity
b) Accommodation for near vision
c) Regulation of pupil size
d) Protection of the eye
Answer: c) Regulation of pupil size
Explanation: The iris is the colored part of the eye that controls the size of the pupil, regulating the amount of light that enters the eye.
53. Which of the following is not a part of the female reproductive system?
a) Uterus
b) Ovary
c) Epididymis
d) Vagina
Answer: c) Epididymis
Explanation: The epididymis is part of the male reproductive system; the uterus, ovary, and vagina are part of the female reproductive system.
54. What is the function of the diaphragm in the respiratory system?
a) Regulation of airflow
b) Gas exchange
c) Protection of the lungs
d) Regulation of breathing
Answer: d) Regulation of breathing
Explanation: The diaphragm is a dome-shaped muscle beneath the lungs that contracts and relaxes to facilitate breathing, helping to expand the chest cavity during inhalation and compress it during exhalation.
55. Which of the following is not a component of the excretory system?
a) Kidney
b) Liver
c) Urinary bladder
d) Ureter
Answer: b) Liver
Explanation: While the liver plays a role in filtering toxins from the blood, it is not part of the excretory system; the excretory system consists of organs such as the kidneys, urinary bladder, ureters, and urethra, involved in the elimination of waste products from the body.
56. What is the function of the ciliary body in the eye?
a) Accommodation for near vision
b) Regulation of pupil size
c) Production of tears
d) Protection of the eye
Answer: a) Accommodation for near vision
Explanation: The ciliary body is a ring of muscle behind the iris that adjusts the shape of the lens to facilitate accommodation for near vision.
57. Which of the following is not a function of the urinary system?
a) Regulation of blood pressure
b) Regulation of electrolyte balance
c) Filtration of blood
d) Production of urine
Answer: a) Regulation of blood pressure
Explanation: While the urinary system plays a role in regulating blood pressure by controlling blood volume and electrolyte balance, its primary functions include filtration of blood and production of urine.
58.Which of the following is not a part of the male reproductive system?
a) Urethra
b) Prostate gland
c) Ovary
d) Seminal vesicle
Answer: c) Ovary
Explanation: The ovary is part of the female reproductive system; the urethra, prostate gland, and seminal vesicle are part of the male reproductive system.
59. What is the function of the alveoli in the respiratory system?
a) Regulation of airflow
b) Gas exchange
c) Production of mucus
d) Protection of the lungs
Answer: b) Gas exchange
Explanation: Alveoli are tiny air sacs in the lungs where gas exchange occurs, allowing oxygen to enter the bloodstream and carbon dioxide to be removed from the body.
60. Which of the following is not a type of muscle tissue?
a) Skeletal muscle
b) Cardiac muscle
c) Smooth muscle
d) Adipose tissue
Answer: d) Adipose tissue
Explanation: Adipose tissue is a type of connective tissue that stores fat, not muscle tissue.
61. What is the function of the medulla oblongata in the brain?
a) Regulation of body temperature
b) Coordination of movement
c) Regulation of breathing and heart rate
d) Vision processing
Answer: c) Regulation of breathing and heart rate
Explanation: The medulla oblongata is responsible for controlling vital functions such as breathing, heart rate, and blood pressure.
62. Which of the following is not a part of the female reproductive system?
a) Ovary
b) Uterus
c) Vas deferens
d) Vagina
Answer: c) Vas deferens
Explanation: The vas deferens is part of the male reproductive system; the ovary, uterus, and vagina are part of the female reproductive system.
63. What is the function of the tympanic membrane in the ear?
a) Detection of sound vibrations
b) Equalization of pressure
c) Regulation of balance
d) Production of earwax
Answer: a) Detection of sound vibrations
Explanation: The tympanic membrane, or eardrum, vibrates in response to sound waves, converting them into mechanical vibrations that are transmitted to the inner ear.
64. Which of the following is not a function of the lymphatic system?
a) Transportation of white blood cells
b) Absorption of dietary fats
c) Production of red blood cells
d) Removal of excess fluid from tissues
Answer: c) Production of red blood cells
Explanation: The lymphatic system is not involved in the production of red blood cells; red blood cell production primarily occurs in the bone marrow.
65. What is the function of the trachea in the respiratory system?
a) Gas exchange
b) Regulation of airflow
c) Protection of the lungs
d) Production of mucus
Answer: b) Regulation of airflow
Explanation: The trachea, or windpipe, helps regulate airflow to and from the lungs and is lined with cilia that help remove mucus and foreign particles.
66. Which of the following is not a function of the pancreas?
a) Regulation of blood sugar levels
b) Production of digestive enzymes
c) Production of insulin
d) Storage of bile
Answer: d) Storage of bile
Explanation: The pancreas produces digestive enzymes and hormones such as insulin and glucagon but does not store bile; bile is stored in the gallbladder.
67. Which of the following is not a component of the central nervous system?
a) Brain
b) Spinal cord
c) Nerves
d) None of the above
Answer: c) Nerves
Explanation: Nerves are part of the peripheral nervous system; the central nervous system consists of the brain and spinal cord.
68. Which of the following is not a function of the spleen?
a) Filtration of blood
b) Production of red blood cells
c) Storage of blood
d) Removal of old or damaged red blood cells
Answer: b) Production of red blood cells
Explanation: While the spleen plays a role in filtering blood and removing old or damaged red blood cells, it does not produce red blood cells; red blood cell production primarily occurs in the bone marrow.
69. What is the function of the adrenal glands?
a) Regulation of blood sugar levels
b) Production of adrenaline and cortisol
c) Regulation of blood pressure
d) Production of bile
Answer: b) Production of adrenaline and cortisol
Explanation: The adrenal glands produce hormones such as adrenaline and cortisol, which are involved in the body’s response to stress, regulation of blood sugar levels, and regulation of blood pressure.
70. Which of the following is not a component of the eye?
a) Retina
b) Sclera
c) Meninges
d) Cornea
Answer: c) Meninges
Explanation: The meninges are protective membranes that surround the brain and spinal cord, not components of the eye.
71. What is the function of the alveoli in the respiratory system?
a) Regulation of airflow
b) Gas exchange
c) Production of mucus
d) Protection of the lungs
Answer: b) Gas exchange
Explanation: Alveoli are tiny air sacs in the lungs where gas exchange occurs, allowing oxygen to enter the bloodstream and carbon dioxide to be removed from the body.
72. Which of the following is not a type of muscle tissue?
a) Skeletal muscle
b) Cardiac muscle
c) Smooth muscle
d) Adipose tissue
Answer: d) Adipose tissue
Explanation: Adipose tissue is a type of connective tissue that stores fat, not muscle tissue.
73. What is the function of the medulla oblongata in the brain?
a) Regulation of body temperature
b) Coordination of movement
c) Regulation of breathing and heart rate
d) Vision processing
Answer: c) Regulation of breathing and heart rate
Explanation: The medulla oblongata is responsible for controlling vital functions such as breathing, heart rate, and blood pressure.
74. Which of the following is not a part of the female reproductive system?
a) Ovary
b) Uterus
c) Vas deferens
d) Vagina
Answer: c) Vas deferens
Explanation: The vas deferens is part of the male reproductive system; the ovary, uterus, and vagina are part of the female reproductive system.
75. What is the function of the tympanic membrane in the ear?
a) Detection of sound vibrations
b) Equalization of pressure
c) Regulation of balance
d) Production of earwax
Answer: a) Detection of sound vibrations
Explanation: The tympanic membrane, or eardrum, vibrates in response to sound waves, converting them into mechanical vibrations that are transmitted to the inner ear.
76. Which of the following is not a function of the lymphatic system?
a) Transportation of white blood cells
b) Absorption of dietary fats
c) Production of red blood cells
d) Removal of excess fluid from tissues
Answer: c) Production of red blood cells
Explanation: The lymphatic system is not involved in the production of red blood cells; red blood cell production primarily occurs in the bone marrow.
77. What is the function of the trachea in the respiratory system?
a) Gas exchange
b) Regulation of airflow
c) Protection of the lungs
d) Production of mucus
Answer: b) Regulation of airflow
Explanation: The trachea, or windpipe, helps regulate airflow to and from the lungs and is lined with cilia that help remove mucus and foreign particles.
78. Which of the following is not a function of the pancreas?
a) Regulation of blood sugar levels
b) Production of digestive enzymes
c) Production of insulin
d) Storage of bile
Answer: d) Storage of bile
Explanation: The pancreas produces digestive enzymes and hormones such as insulin and glucagon but does not store bile; bile is stored in the gallbladder.
79. Which of the following is not a component of the central nervous system?
a) Brain
b) Spinal cord
c) Nerves
d) None of the above
Answer: c) Nerves
Explanation: Nerves are part of the peripheral nervous system; the central nervous system consists of the brain and spinal cord.
80. Which of the following is not a function of the spleen?
a) Filtration of blood
b) Production of red blood cells
c) Storage of blood
d) Removal of old or damaged red blood cells
Answer: b) Production of red blood cells
Explanation: While the spleen plays a role in filtering blood and removing old or damaged red blood cells, it does not produce red blood cells; red blood cell production primarily occurs in the bone marrow.
81. What is the function of the adrenal glands?
a) Regulation of blood sugar levels
b) Production of adrenaline and cortisol
c) Regulation of blood pressure
d) Production of bile
Answer: b) Production of adrenaline and cortisol
Explanation: The adrenal glands produce hormones such as adrenaline and cortisol, which are involved in the body’s response to stress, regulation of blood sugar levels, and regulation of blood pressure.
82. Which of the following is not a component of the eye?
a) Retina
b) Sclera
c) Meninges
d) Cornea
Answer: c) Meninges
Explanation: The meninges are protective membranes that surround the brain and spinal cord, not components of the eye.
83. What is the function of the alveoli in the respiratory system?
a) Regulation of airflow
b) Gas exchange
c) Production of mucus
d) Protection of the lungs
Answer: b) Gas exchange
Explanation: Alveoli are tiny air sacs in the lungs where gas exchange occurs, allowing oxygen to enter the bloodstream and carbon dioxide to be removed from the body.
84. Which of the following is not a type of muscle tissue?
a) Skeletal muscle
b) Cardiac muscle
c) Smooth muscle
d) Adipose tissue
Answer: d) Adipose tissue
Explanation: Adipose tissue is a type of connective tissue that stores fat, not muscle tissue.
85. What is the function of the medulla oblongata in the brain?
a) Regulation of body temperature
b) Coordination of movement
c) Regulation of breathing and heart rate
d) Vision processing
Answer: c) Regulation of breathing and heart rate
Explanation: The medulla oblongata is responsible for controlling vital functions such as breathing, heart rate, and blood pressure.
86. Which of the following is not a part of the female reproductive system?
a) Ovary
b) Uterus
c) Vas deferens
d) Vagina
Answer: c) Vas deferens
Explanation: The vas deferens is part of the male reproductive system; the ovary, uterus, and vagina are part of the female reproductive system.
87. What is the function of the tympanic membrane in the ear?
a) Detection of sound vibrations
b) Equalization of pressure
c) Regulation of balance
d) Production of earwax
Answer: a) Detection of sound vibrations
Explanation: The tympanic membrane, or eardrum, vibrates in response to sound waves, converting them into mechanical vibrations that are transmitted to the inner ear.
88. Which of the following is not a function of the lymphatic system?
a) Transportation of white blood cells
b) Absorption of dietary fats
c) Production of red blood cells
d) Removal of excess fluid from tissues
Answer: c) Production of red blood cells
Explanation: The lymphatic system is not involved in the production of red blood cells; red blood cell production primarily occurs in the bone marrow.
89. What is the function of the trachea in the respiratory system?
a) Gas exchange
b) Regulation of airflow
c) Protection of the lungs
d) Production of mucus
Answer: b) Regulation of airflow
Explanation: The trachea, or windpipe, helps regulate airflow to and from the lungs and is lined with cilia that help remove mucus and foreign particles.
90. Which of the following is not a function of the pancreas?
a) Regulation of blood sugar levels
b) Production of digestive enzymes
c) Production of insulin
d) Storage of bile
Answer: d) Storage of bile
Explanation: The pancreas produces digestive enzymes and hormones such as insulin and glucagon but does not store bile; bile is stored in the gallbladder.
91. Which of the following is not a component of the central nervous system?
a) Brain
b) Spinal cord
c) Nerves
d) None of the above
Answer: c) Nerves
Explanation: Nerves are part of the peripheral nervous system; the central nervous system consists of the brain and spinal cord.
92. Which of the following is not a function of the spleen?
a) Filtration of blood
b) Production of red blood cells
c) Storage of blood
d) Removal of old or damaged red blood cells
Answer: b) Production of red blood cells
Explanation: While the spleen plays a role in filtering blood and removing old or damaged red blood cells, it does not produce red blood cells; red blood cell production primarily occurs in the bone marrow.
93. What is the function of the adrenal glands?
a) Regulation of blood sugar levels
b) Production of adrenaline and cortisol
c) Regulation of blood pressure
d) Production of bile
Answer: b)Production of adrenaline and cortisol
Explanation: The adrenal glands produce hormones such as adrenaline and cortisol, which are involved in the body’s response to stress, regulation of blood sugar levels, and regulation of blood pressure.
94. Which of the following is not a component of the eye?
a) Retina
b) Sclera
c) Meninges
d) Cornea
Answer: c) Meninges
Explanation: The meninges are protective membranes that surround the brain and spinal cord, not components of the eye.
95. What is the function of the alveoli in the respiratory system?
a) Regulation of airflow
b) Gas exchange
c) Production of mucus
d) Protection of the lungs
Answer: b) Gas exchange
Explanation: Alveoli are tiny air sacs in the lungs where gas exchange occurs, allowing oxygen to enter the bloodstream and carbon dioxide to be removed from the body.
96. Which of the following is not a type of muscle tissue?
a) Skeletal muscle
b) Cardiac muscle
c) Smooth muscle
d) Adipose tissue
Answer: d) Adipose tissue
Explanation: Adipose tissue is a type of connective tissue that stores fat, not muscle tissue.
97. What is the function of the medulla oblongata in the brain?
a) Regulation of body temperature
b) Coordination of movement
c) Regulation of breathing and heart rate
d) Vision processing
Answer: c) Regulation of breathing and heart rate
Explanation: The medulla oblongata is responsible for controlling vital functions such as breathing, heart rate, and blood pressure.
98. Which of the following is not a part of the female reproductive system?
a) Ovary
b) Uterus
c) Vas deferens
d) Vagina
Answer: c) Vas deferens
Explanation: The vas deferens is part of the male reproductive system; the ovary, uterus, and vagina are part of the female reproductive system.
99. What is the function of the tympanic membrane in the ear?
a) Detection of sound vibrations
b) Equalization of pressure
c) Regulation of balance
d) Production of earwax
Answer: a) Detection of sound vibrations
Explanation: The tympanic membrane, or eardrum, vibrates in response to sound waves, converting them into mechanical vibrations that are transmitted to the inner ear.
100. Which of the following is not a function of the lymphatic system?
a) Transportation of white blood cells
b) Absorption of dietary fats
c) Production of red blood cells
d) Removal of excess fluid from tissues
Answer: c) Production of red blood cells
Explanation: The lymphatic system is not involved in the production of red blood cells; red blood cell production primarily occurs in the bone marrow.
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