WILLER ACADEMY

Class 10 Science Chapter 7 Quiz

Control and Coordination

1. The structural and functional unit of the nervous system is:
a) Nephron b) Neuron c) Axon d) Dendrite

2. Which hormone is responsible for lowering blood sugar level?
a) Insulin b) Glucagon c) Thyroxine d) Adrenaline

3. Which part of the brain controls voluntary actions?
a) Cerebellum b) Cerebrum c) Medulla d) Pons

4. Which plant hormone is responsible for cell elongation?
a) Auxin b) Gibberellin c) Cytokinin d) Abscisic acid

5. Which of the following is a tropic movement?
a) Nastic movement b) Phototropism c) Sleep movement d) Nyctinasty

6. What is a reflex action? (2 marks)

7. Name the gland that secretes growth hormone. State one function. (2 marks)

8. Write three differences between nervous control and hormonal control. (3 marks)

9. Explain the role of adrenaline in the human body. (3 marks)

10.
a) Draw a labeled diagram of a neuron and explain its function.
b) What is phototropism? Name the hormone involved. (5 marks)

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