Class 10th Science Chapter – 6 Control and Coordination MCQ With Answers

September 22, 2023

Class 10th Science Chapter – 6 Control and Coordination

Textbook	NCERT
Class	10th
Subject	Science
Chapter	6^th
Chapter Name	Control and Coordination
Category	Class 10th Science MCQ
Medium	English
Source	Last Doubt

Class 10th Science Chapter – 6 Control and Coordination MCQ With Answers Which you will learn such topics: Control and coordination in human, Human nervous System, Central Nervous System, Peripheral Nervous System, Brain, Human Endocrine System (Glands), Control and Co-ordination in Plants, Plant Hormones (Phytohormones), Growth Promoters, Nervous system, Receptors and Reflex Action etc. To help your Better Understanding

Class 10th Science Chapter – 6 Control and Coordination

Chapter – 6

Control and Coordination

MCQ

1. Which plant hormone promotes dormancy in seeds and buds?

(a) Auxin
(b) Gibberellin
(c) Cytokinin
(d) Abscisic acid

Answer – (d) Abscisic acid

2. Roots of plants are:

(a) Positively geotropic
(b) Negatively geotropic
(c) Positively phototropic
(d) None of these

Answer – (a) positively geotropic

3. Response of plant roots towards water is called:

(a) Chemotropism
b) Phototropism
(c) Hydrotropism
(d) Geotropism

Answer – (c) Hydrotropism

4. Movement of sunflower in accordance with the path of Sun is due to

(a) Chemotropism
(b) Geotropism
(c) Phototropism
(d) Hydrotropism

Answer – (c) Phototropism

5. Which plant hormone promotes cell division?

(a) Auxin
(b) Gibberellin
(c) Cytokinin
(d) Abscisic acid

Answer – (c) Cytokinin

6. 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.

Answer – (b) To inhibit growth.

7. Fall of mature leaves and fruits from plants is triggered by which of the following substance?

(a) Auxin
(b) Cytokinin
(c) Gibberellin
(d) Abscisic acid

Answer – (d) Abscisic acid

8. Any change in the environment to which an organism responds is called

(a) Stimulus
(b) Coordination
(c) Response
(d) Hormone

Answer – (a) Stimulus

9. A part of the body which responds to the in-structions sent from nervous system is called

(a) Receptor
(b) Effector
(c) Nerves
(d) Muscles

Answer – (b) Effector

10. The longest fibre on the cell body of a neuron is called

(a) Sheath
(b) Cytoplasm
(c) Axon
(d) Dendrites

Answer – (c) Axon

11. Which nerves transmit impulses from the central nervous system towards muscle cells?

(a) Sensory nerves
(b) Motor nerves
(c) Relay nerves
(d) Cranial nerves

Answer – (b) Motor nerves

12. A microscopic gap between a pair of adjacent neurons over which nerve impulses pass is called

(a) Neurotransmitter
(b) Dendrites
(c) Axon
(d) Synapse

Answer – (d) Synapse

13. The highest coordinating centre in the human body is

(a) Spinal cord
(b) Heart
(c) Brain
(d) Kidney

Answer – (c) Brain

14. Main function of cerebrum is

(a) Thinking
(b) Hearing
(c) Memory
(d) Balancing

Answer – (a) Thinking

15. Posture and balance of the body is controlled by

(a) Pons
(b) Medulla oblongata
(c) Cerebellum
(d) Cerebrum

Answer – (c) Cerebellum

16. Breathing is controlled by which part of the brain?

(a) Cerebrum
(b) Cerebellum
(c) Hypothalamus
(d) Medulla oblongata

Answer – (d) Medulla oblongata

17. Which part of nervous system controls the reflex activities of the body?

(a) Brain
(b) Spinal cord
(c) Cerebrum
(d) Cerebellum

Answer – (b) Spinal cord

18. Which of the following acts as both endocrine and exocrine gland?

(a) Pancreas
(b) Thyroid
(c) Adrenal
(d) Liver

Answer – (a) Pancreas

19. Identify which of the following statements about thyroxin is incorrect?

(a) Thyroid gland requires iodine to synthesize thyroxin.
(b) Thyroxin is also called thyroid hormone.
(c) It regulates protein, carbohydrates and fat metabolism in the body.
(d) Iron is essential for the synthesis of thyroxin.

Answer – (d) Iron is essential for the synthesis of thyroxin.

20. Which gland secretes the growth hormone?

(a) Pituitary gland
(b) Thyroid
(c) Hypothalamus
(d) Adrenal

Answer – (a) Pituitary gland

NCERT Solution Class 10th Science All Chapters MCQ

Chapter 1 – Chemical Reactions and Equations

Chapter 2 – Acids, Bases, and Salts

Chapter 3 – Metals and Non-Metals

Chapter 4 – Carbon and Its Compounds

Chapter 5 – Life Processes

Chapter 6 – Control and Coordination

Chapter 7 – How Do Organisms Reproduce

Chapter 8 – Heredity

Chapter 9 – Light reflection and refraction

Chapter 10 – Human eye and colorful world