Control and Coordination Worksheets

Control and coordination Worksheet-25

Subjective questions:

1. What is the difference between a reflex action and walking?

2. What is the role of the brain in reflex action?

3. How is the movement of leaves of the sensitive plant different from the movement of a shoot towards light?

4. How do auxins promote the growth of a tendril around a support?

5. Why is the use of iodised salt advisable?

Control and coordination Worksheet-26

Subjective questions:

21. Name the source gland and give one main action of the following hormones :

(i) Prolactin, (ii) Calcitonin, (iii) Insulin

22. Name the source gland and give one main action of the following hormones :

(i) Vasopressin , (ii) Oxytocin, (iii) Parathormone

23. Draw an outline of the human body and show the location of any six endocrine glands.

Control and coordination Worksheet-27

Subjective questions:

1. Explain how nervous impulse travel in the body.

2. Write the mechanism of reflex action.

3. What is cerebrum? State the functions of cerebrum.

4. Write the functions of pons, cerebellum and medulla oblongata.

5. Define reflex arc. Give a flow chart of a spinal reflex arc.

6. Give one example to show how the endocrine system coordinates our body activities.