MCQ Questions for Class 10 Science Chapter 7 Control and Coordination

MCQ Questions for Class 10 Science Chapter 7 Control and Coordination play a very significant role in your final preparation for the exams. It help you in active learning and also improve your problem-solving ability.

Chapter 7 Class 10 Science MCQ Questions can be used to identify areas where learners need more effort. They can be used to test knowledge of a particular topic or subject, and they can also be used to encourage further learning on a particular topic.

Chapter 7 Control and Coordination Class 10 Science MCQ Questions

1. Reflex actions are mediated through
(a) brain
(b) effectors
(c) spinal cord
(d) receptors
▶ (c) spinal cord

2. The growth of tendrils in pea plants is due to:
(a) Effect of gravity
(b) Effect of chemicals
(c) Rapid cell division in tendrillar cells that are away from the support
(d) Rapid cell division in tendrillar cells in contact with the support
▶ (c) Rapid cell division in tendrillar cells that are away from the support

3. The main effect of cytokinin in plants is to
(a) improve the quality of fruits
(b) prevent the growth of lateral buds
(c) regulate opening and closing of stomata
(d) stimulate cell division
▶ (d) stimulate cell division

4. The shape of guard cells changes due to change in the:
(a) Protein composition of cells
(b) Temperature of cells
(c) Amount of water in cells
(d) Position of nucleus in cells
▶ (c) Amount of water in cells

5. In a neuron conversion of electrical signal to a chemical signal occurs at:
(a) Cell body
(b) Dendritic end
(c) Axonal terminals
(d) Axon
▶ (c) Axonal terminals

6. The highest coordinating centre in the human body is
(a) spinal cord
(b) heart
(c) brain
(d) kidney
▶ (c) brain

7. Any change in the environment to which an organism responds is called
(a) stimulus
(b) coordination
(c) response
(d) hormone
▶ (a) stimulus

8. Involuntary actions in the body are controlled by:
(a) Medulla in fore brain
(b) Medulla in mid brain
(c) Medulla in hind brain
(d) Medulla in spinal cord
▶ (c) Medulla in hind brain

9. The brain is responsible for:
(a) Thinking
(b) Regulating the heart beat
(c) Balancing the body
(d) All of the above
▶ (d) All of the above

10. Which part of nervous system controls the reflex activities of the body?
(a) Brain
(b) Spinal cord
(c) Cerebrum
(d) Cerebellum
▶ (b) Spinal cord

11. A part of the body which responds to the instructions sent from nervous system is called
(a) receptor
(b) effector
(c) nerves
(d) muscles
▶ (b) effector

12. Which nerves transmit impulses from the central nervous system towards muscle cells?
(a) Sensory nerves
(b) Motor nerves
(c) Relay nerves
(d) Cranial nerves
▶ (b) Motor nerves

13. Which of the following acts as both endocrine and exocrine gland?
(a) Pancreas
(b) Thyroid
(c) Adrenal
(d) Liver
▶ (a) Pancreas

14. Breathing is controlled by which part of the brain?
(a) Cerebrum
(b) Cerebellum
(c) Hypothalamus
(d) Medulla oblongata
▶ (d) Medulla oblongata

15. The substance that triggers the fall of mature leaves and fruits from plants is due to:
(a) Auxin
(b) Gibberellin
(c) Abscisic acid
(d) Cytokinin
▶ (c) Abscisic acid

16. Movement of sunflower in accordance with the path of Sun is due to
(a) Chemotropism
(b) Geotropism
(c) Phototropism
(d) Hydrotropism
▶ (c) Phototropism

17. The main function of abscisic acid in plants is
(a) to promote cell division.
(b) to inhibit growth.
(c) to promote growth of stem.
(d) to increase the length of cells.
▶ (b) to inhibit growth.

18. The movement of root away from light is:
(a) Positive phototropism
(b) Negative hydrotropism
(c) Negative phototropism
(d) Positive geotropism
▶ (c) Negative phototropism

19. Which of the following is a plant hormone?
(a) Insulin
(b) Thyroxin
(c) Oestrogen
(d) Cytokinin
▶ (d) Cytokinin

20. The gap between two neurons is called a :
(a) Dendrite
(b) Synapse
(d) Impulse
(c) Axon
▶ (b) Synapse

21. Cretinism results due to:
(a) Excess secretion of growth hormone
(b) Under secretion of thyroxin
(c) Excess secretion of adrenaline
(d) Under secretion of growth hormone
▶ (b) Under secretion of thyroxin

22. Roots of plants are:
(a) positively geotropic
(b) negatively geotropic
(c) positively phototropic
(d) None of these
▶ (a) positively geotropic

23. Ageing in human beings is caused by disappearance of which of the following glands?
(a) Adrenal
(b) Pituitary
(c) Thyroid
(d) Thymus
▶ (d) Thymus

24. Posture and balance of the body is controlled by
(a) Pons
(b) Medulla oblongata
(c) Cerebellum
(d) Cerebrum
▶ (c) Cerebellum

25. Which statement is incorrect about auxins?
(a) They promote the growth of root
(b) They promote the growth of shoot
(c) They influence the formation of flower and ripening of fruit
(d) They inhibit the growth of root
▶ (a) They promote the growth of root

26. Which of the following tissues provide control and coordination in animals?
(a) Nervous and Skeletal
(b) Muscular and Skeletal
(c) Muscular and Transport
(d) Nervous and Muscular
▶ (d) Nervous and Muscular