Included chapters are 1. Life Process, 2. Control and Coordination, 3. How do Organisms Reproduce?
Each question contains 1 Mark
Total Marks : 100
All questions are compulsory
Multiple-Choice Questions (MCQs)
1. The process by which green plants make their food is called:
a) Respiration
b) Digestion
c) Photosynthesis
d) Transpiration
2. Which of the following is an example of an autotrophic organism?
a) Dog
b) Amoeba
c) Rose plant
d) Human
3. The central nervous system consists of:
a) Brain and nerves
b) Spinal cord and nerves
c) Brain and spinal cord
d) Brain, spinal cord, and nerves
4. Hormone responsible for regulating blood sugar levels is:
a) Adrenaline
b) Thyroxine
c) Insulin
d) Growth hormone
5. In humans, fertilization occurs in the:
a) Ovary
b) Uterus
c) Fallopian tube
d) Vagina
6. Binary fission is a mode of reproduction in:
a) Humans
b) Amoeba
c) Dogs
d) Birds
7. The part of the brain responsible for coordination and balance is:
a) Cerebrum
b) Cerebellum
c) Medulla oblongata
d) Hypothalamus
8. The male gamete in humans is called:
a) Sperm
b) Egg
c) Zygote
d) Ovum
9. Transpiration in plants is essential for:
a) Absorption of minerals
b) Cooling of the plant
c) Respiration
d) All of the above
10. Which enzyme is responsible for the digestion of proteins in the stomach?
a) Amylase
b) Protease
c) Lipase
d) Sucrase
11. The process by which organisms exchange gases with the environment is called:
a) Respiration
b) Photosynthesis
c) Transpiration
d) Digestion
12. The reflex arc involves the following components:
a) Sensory neuron, interneuron, motor neuron
b) Sensory neuron, motor neuron, effector
c) Motor neuron, interneuron, effector
d) Sensory neuron, interneuron, effector
13. In humans, the exchange of gases takes place in the:
a) Lungs
b) Liver
c) Kidneys
d) Stomach
14. The female reproductive organ where the development of the fetus takes place is called the:
a) Uterus
b) Ovary
c) Fallopian tube
d) Vagina
15. Which of the following is a function of the medulla oblongata?
a) Thinking and reasoning
b) Coordination of voluntary movements
c) Regulation of heartbeat and respiration
d) Control of vision
16. Asexual reproduction in plants can occur through:
a) Budding
b) Binary fission
c) Spore formation
d) All of the above
17. The hormone responsible for the development of secondary sexual characteristics in males is:
a) Estrogen
b) Testosterone
c) Progesterone
d) Insulin
18. What is the main function of the cerebrum in the human brain?
a) Coordination of movements
b) Regulation of heartbeat
c) Thinking and decision-making
d) Maintaining balance
19. Which of the following is a voluntary action?
a) Blinking of eyes
b) Beating of the heart
c) Movement of fingers
d) Digestion of food
20. In which part of the digestive system does the absorption of nutrients primarily occur?
a) Stomach
b) Small intestine
c) Large intestine
d) Esophagus
21. The hormone responsible for the growth of bones is:
a) Adrenaline
b) Thyroxine
c) Insulin
d) Growth hormone
22. What is the function of the stomata in plant leaves?
a) Absorption of water
b) Exchange of gases
c) Transpiration
d) Photosynthesis
23. In human reproduction, the union of the sperm and egg is called:
a) Fertilization
b) Implantation
c) Ovulation
d) Menstruation
24. Which of the following is a plant hormone responsible for elongation of cells?
a) Gibberellin
b) Auxin
c) Cytokinin
d) Abscisic acid
25. The process by which amoeba reproduces is:
a) Fission
b) Budding
c) Regeneration
d) Fragmentation
26. The thyroid gland produces the hormone:
a) Adrenaline
b) Thyroxine
c) Insulin
d) Growth hormone
27. Which of the following is an example of a reflex action?
a) Blinking when exposed to bright light
b) Smelling a flower
c) Voluntarily raising your hand
d) Digesting food in the stomach
28. The organ that stores bile in the human body is the:
a) Liver
b) Gallbladder
c) Pancreas
d) Stomach
29. Which of the following is an example of a tropic movement in plants?
a) Opening and closing of stomata
b) Curling of tendrils around a support
c) Drooping of leaves in response to light
d) Growth of roots towards gravity
30. What is the function of the nephrons in the human kidney?
a) Filtration of blood
b) Production of urine
c) Regulation of blood pressure
d) Storage of urine
31. The process by which water is lost from the surface of plant leaves in the form of water vapor is called:
a) Transpiration
b) Respiration
c) Photosynthesis
d) Absorption
32. Which of the following is not a part of the human respiratory system?
a) Trachea
b) Bronchus
c) Esophagus
d) Lungs
33. The process by which food is broken down into simpler substances in the digestive system is called:
a) Respiration
b) Digestion
c) Absorption
d) Assimilation
34. The female reproductive cell in plants is called:
a) Ovule
b) Pollen
c) Egg
d) Seed
35. Which of the following statements is true about asexual reproduction?
a) It involves the fusion of gametes.
b) Offspring are genetically identical to the parent.
c) It leads to greater genetic variation.
d) It occurs in most animals.
36. The hormone insulin is produced by which organ in the human body?
a) Liver
b) Pancreas
c) Kidneys
d) Thyroid gland
37. In the human eye, the part that controls the amount of light entering is the:
a) Cornea
b) Iris
c) Retina
d) Lens
38. The part of the brain responsible for regulating sleep-wake cycles and body temperature is the:
a) Cerebrum
b) Cerebellum
c) Medulla oblongata
d) Hypothalamus
39. The male reproductive system includes the:
a) Testes, vas deferens, and penis
b) Ovaries, fallopian tubes, and uterus
c) Uterus, cervix, and vagina
d) Ovary, fallopian tube, and vagina
40. What is the role of the pituitary gland in the endocrine system?
a) It produces insulin.
b) It regulates the menstrual cycle.
c) It controls the release of other hormones.
d) It produces adrenaline.
41. The process by which plants bend towards the source of light is called:
a) Geotropism
b) Phototropism
c) Hydrotropism
d) Thigmotropism
42. What is the function of the Eustachian tube in the human ear?
a) Regulation of balance
b) Hearing
c) Equalizing air pressure
d) Secretion of earwax
43. The female reproductive hormone responsible for the development of secondary sexual characteristics is:
a) Progesterone
b) Estrogen
c) Testosterone
d) Insulin
44. In the human respiratory system, the trachea is also known as the:
a) Windpipe
b) Bronchus
c) Alveolus
d) Diaphragm
45. The part of the flower that develops into a fruit after fertilization is the:
a) Sepal
b) Petal
c) Stamen
d) Ovary
46. Which of the following is an example of negative geotropism?
a) Roots growing downward
b) Shoots growing upward
c) Leaves turning towards light
d) Tendrils coiling around a support
47. The primary function of the large intestine in the digestive system is:
a) Absorption of nutrients
b) Storage of bile
c) Formation of feces
d) Production of enzymes
48. What is the function of the ciliary muscles in the human eye?
a) Controlling the amount of light entering the eye
b) Focusing the lens for near and distant vision
c) Detecting colors in the visual spectrum
d) Converting light into electrical signals
49. The phenomenon of plasmolysis occurs when a plant cell:
a) Takes in water and swells
b) Loses water and shrinks
c) Photosynthesizes
d) Undergoes fertilization
50. Which of the following is a function of the pancreas in the digestive system?
a) Production of bile
b) Regulation of blood sugar levels
c) Absorption of nutrients
d) Storage of urine
51. The hormone oxytocin is responsible for:
a) Regulating blood sugar levels
b) Stimulating uterine contractions during childbirth
c) Controlling metabolic rate
d) Promoting bone growth
52. The part of the human ear that vibrates in response to sound waves is the:
a) Eardrum
b) Cochlea
c) Auditory nerve
d) Stirrup
53. In plant cells, the rigid outer layer that provides support and protection is called the:
a) Cell membrane
b) Cell wall
c) Chloroplast
d) Nucleus
54. The human reproductive system includes the:
a) Testes, uterus, and ovaries
b) Ovary, fallopian tube, and penis
c) Testes, vas deferens, and uterus
d) Ovary, uterus, and vas deferens
55. The hormone responsible for the regulation of metabolism in the human body is:
a) Insulin
b) Thyroxine
c) Estrogen
d) Adrenaline
56. In the human eye, the image formed on the retina is:
a) Real and inverted
b) Real and upright
c) Virtual and inverted
d) Virtual and upright
57. The process by which excess water and waste products are removed from the body in the form of urine is called:
a) Respiration
b) Excretion
c) Digestion
d) Absorption
58. Which of the following is a characteristic of a tropic movement in plants?
a) It is irreversible
b) It occurs in response to light or gravity
c) It involves growth in the direction of the stimulus
d) It is rapid and occurs within seconds
59. The part of the human brain that controls involuntary activities such as heartbeat and respiration is the:
a) Cerebrum
b) Cerebellum
c) Medulla oblongata
d) Hypothalamus
60. The structure that connects the muscles to bones is called:
a) Tendon
b) Ligament
c) Cartilage
d) Synovium
61. Which of the following is an example of positive phototropism in plants?
a) Roots growing towards light
b) Leaves turning away from light
c) Shoots growing away from light
d) Flowers facing the sun
62. The primary function of the gallbladder is to:
a) Produce bile
b) Store and concentrate bile
c) Secrete digestive enzymes
d) Absorb nutrients
63. The male sex hormone responsible for the development of male reproductive organs and secondary sexual characteristics is:
a) Estrogen
b) Progesterone
c) Testosterone
d) Insulin
64. The process by which plants lose water in the form of water vapor through tiny pores is called:
a) Transpiration
b) Respiration
c) Photosynthesis
d) Evaporation
65. The part of the human eye that refracts light and helps in focusing it on the retina is the:
a) Cornea
b) Lens
c) Retina
d) Iris
66. Which of the following is a function of the epiglottis in the human respiratory system?
a) Producing sound during speech
b) Preventing food from entering the trachea
c) Exchange of gases
d) Filtration of air
67. In the human digestive system, the function of the small intestine is primarily:
a) Absorption of nutrients
b) Digestion of food
c) Storage of bile
d) Production of saliva
68. The part of the flower that contains the pollen grains is the:
a) Sepal
b) Petal
c) Stamen
d) Ovary
69. What is the role of the semicircular canals in the human ear?
a) Regulation of balance and body posture
b) Detection of sound waves
c) Equalizing air pressure
d) Production of earwax
70. The hormone responsible for the development of the female reproductive organs and secondary sexual characteristics is:
a) Progesterone
b) Estrogen
c) Testosterone
d) Insulin
71. The process of conversion of milk into curd is an example of:
a) Fermentation
b) Respiration
c) Photosynthesis
d) Transpiration
72. Which of the following is an example of negative phototropism in plants?
a) Shoots bending towards light
b) Leaves turning towards light
c) Roots growing away from light
d) Flowers facing the sun
73. The human respiratory system consists of the following parts:
a) Lungs, bronchi, trachea, and diaphragm
b) Stomach, liver, kidneys, and esophagus
c) Heart, blood vessels, and lungs
d) Brain, spinal cord, and nerves
74. The part of the human brain that controls voluntary actions, intelligence, and memory is the:
a) Cerebrum
b) Cerebellum
c) Medulla oblongata
d) Hypothalamus
75. The process by which green plants capture sunlight and convert it into chemical energy is called:
a) Respiration
b) Transpiration
c) Photosynthesis
d) Digestion
76. The male reproductive organ responsible for the production of sperm is the:
a) Testis
b) Vas deferens
c) Penis
d) Epididymis
77. The hormone responsible for the development of the placenta during pregnancy is:
a) Progesterone
b) Estrogen
c) Testosterone
d) Prolactin
78. In the human digestive system, the first part of the small intestine is called the:
a) Duodenum
b) Jejunum
c) Ileum
d) Colon
79. The part of the human eye that controls the size of the pupil is the:
a) Retina
b) Cornea
c) Lens
d) Iris
80. In the process of osmosis, water molecules move from a region of:
a) Higher concentration to lower concentration
b) Lower concentration to higher concentration
c) Equal concentration
d) No concentration gradient
81. The function of the bronchi in the human respiratory system is to:
a) Exchange gases
b) Filter air
c) Transport oxygen to cells
d) Produce mucus
82. The female sex hormone responsible for the development of the uterine lining during the menstrual cycle is:
a) Estrogen
b) Progesterone
c) Testosterone
d) Prolactin
83. The process by which plants respond to touch or contact is called:
a) Geotropism
b) Phototropism
c) Hydrotropism
d) Thigmotropism
84. The part of the human ear that amplifies sound vibrations is the:
a) Eardrum
b) Cochlea
c) Auditory nerve
d) Stirrup
85. The hormone responsible for the development of the mammary glands and milk production in females is:
a) Estrogen
b) Progesterone
c) Prolactin
d) Insulin
86. The process by which nutrients are absorbed into the bloodstream from the small intestine is called:
a) Digestion
b) Assimilation
c) Respiration
d) Absorption
87. The part of the human brain that regulates body temperature, hunger, and thirst is the:
a) Cerebrum
b) Cerebellum
c) Medulla oblongata
d) Hypothalamus
88. The male reproductive cell is also known as:
a) Ovum
b) Sperm
c) Zygote
d) Ovary
89. The hormone responsible for the development of male secondary sexual characteristics and the maintenance of male reproductive organs is:
a) Estrogen
b) Progesterone
c) Testosterone
d) Prolactin
90. The part of the flower that protects the developing bud is the:
a) Sepal
b) Petal
c) Stamen
d) Ovary
91. In the human respiratory system, the process by which oxygen is transported from the lungs to the cells is called:
a) Inhalation
b) Exhalation
c) Respiration
d) Circulation
92. The hormone responsible for the regulation of salt and water balance in the human body is:
a) Insulin
b) Aldosterone
c) Thyroxine
d) Prolactin
93. The part of the human digestive system where water is absorbed from undigested food is the:
a) Stomach
b) Small intestine
c) Large intestine
d) Esophagus
94. The female reproductive cell in humans is also known as:
a) Ovum
b) Egg
c) Sperm
d) Zygote
95. The hormone responsible for the development of the uterine lining and preparation for pregnancy is:
a) Estrogen
b) Progesterone
c) Testosterone
d) Prolactin
96. The process by which plants lose excess water in the form of water droplets is called:
a) Transpiration
b) Respiration
c) Photosynthesis
d) Evaporation
97. The structure that connects muscles to bones is called:
a) Ligament
b) Tendon
c) Cartilage
d) Synovium
98. The male reproductive organ that stores sperm before ejaculation is the:
a) Testis
b) Vas deferens
c) Penis
d) Epididymis
99. The part of the human brain responsible for the regulation of sleep-wake cycles is the:
a) Cerebrum
b) Cerebellum
c) Medulla oblongata
d) Hypothalamus
100. The hormone responsible for the development of the male reproductive organs and secondary sexual characteristics is:
a) Estrogen
b) Progesterone
c) Testosterone
d) Prolactin
Answers
1. c) Photosynthesis
2. c) Rose plant
3. c) Brain and spinal cord
4. c) Insulin
5. c) Fallopian tube
6. b) Amoeba
7. b) Cerebellum
8. a) Sperm
9. d) All of the above
10. b) Protease
11. a) Respiration
12. b) Sensory neuron, motor neuron, effector
13. a) Lungs
14. a) Uterus
15. c) Regulation of heartbeat and respiration
16. d) All of the above
17. b) Testosterone
18. c) Thinking and decision-making
19. c) Movement of fingers
20. b) Small intestine
21. d) Growth hormone
22. b) Exchange of gases
23. a) Fertilization
24. b) Auxin
25. a) Fission
26. b) Thyroxine
27. a) Blinking when exposed to bright light
28. b) Gallbladder
29. b) Curling of tendrils around a support
30. a) Filtration of blood
31. a) Transpiration
32. c) Esophagus
33. b) Digestion
34. c) Egg
35. b) Offspring are genetically identical to the parent.
36. b) Pancreas
37. b) Iris
38. d) Hypothalamus
39. a) Testes, vas deferens, and penis
40. c) It controls the release of other hormones.
41. b) Phototropism
42. c) Equalizing air pressure
43. b) Estrogen
44. a) Windpipe
45. d) Ovary
46. c) Roots growing away from light
47. c) Formation of feces
48. b) Focusing the lens for near and distant vision
49. b) Loses water and shrinks
50. b) Regulation of blood sugar levels
51. b) Stimulating uterine contractions during childbirth
52. a) Eardrum
53. b) Cell wall
54. a) Testes, uterus, and ovaries
55. b) Thyroxine
56. a) Real and inverted
57. b) Excretion
58. c) It involves growth in the direction of the stimulus
59. c) Medulla oblongata
60. a) Tendon
61. d) Flowers facing the sun
62. b) Store and concentrate bile
63. c) Testosterone
64. a) Transpiration
65. b) Lens
66. c) Equalizing air pressure
67. a) Absorption of nutrients
68. c) Stamen
69. a) Regulation of balance and body posture
70. b) Estrogen
71. a) Fermentation
72. c) Roots growing away from light
73. a) Lungs, bronchi, trachea, and diaphragm
74. a) Cerebrum
75. c) Photosynthesis
76. a) Testis
77. a) Progesterone
78. a) Duodenum
79. d) Iris
80. a) Higher concentration to lower concentration
81. b) Filter air
82. a) Estrogen
83. d) Thigmotropism
84. b) Cochlea
85. c) Prolactin
86. d) Absorption
87. d) Hypothalamus
88. b) Sperm
89. c) Testosterone
90. a) Sepal
91. c) Respiration
92. b) Aldosterone
93. c) Large intestine
94. b) Egg
95. b) Progesterone
96. a) Transpiration
97. b) Tendon
98. d) Epididymis
99. d) Hypothalamus
100. c) Testosterone
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