CONTROL AND CO – ORDINATION test2

CONTROL AND CO – ORDINATION
                                                     FORMATIVE ASSESSMENT I

MARKS-30                                                                                          TIME- 70 MINUTES
Instructions:
 Questions : 1 to 5 – 1 Mark each
 Questions : 6 to 9 – 2 Marks each
 Questions : 10 to 13 – 3 Marks each
 Question 14 – 5 Marks

1. Which endocrine gland is unpaired?

2. Which part of the brain controlled posture and balance of the body?

3. Where in a neuron, conversions of electrical signal to a chemical signal occur?

4. Which gland secretes digestive enzyme as well as hormones?

5. We suddenly withdraw our hand when a pin pricks. Name the type of response involved in this action.

6. What is a tropic movement? Explain with an example.

7. What will happen if intake of iodine in our diet is low?

8. Draw the structure of neuron and label the following on it:
a. Nucleus
b. Dendrite
c. Cell body
d. Axon

9. Why are some patients of diabetes treated by giving injections of insulin?

10. Why is the flow of signals in a synapse from axonal end of one neuron but not the reverse?

11. What are reflex actions? Explain reflex arc.

12. What are the major parts of the brains? Mention the functions of each.

13. How does chemical co – ordination take place in animals?

14. a.Name the various plant hormones.
b. Give physiological effects of hormones on plant growth and development.


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CONTROL AND CO – ORDINATION test2CONTROL AND CO – ORDINATION test2CONTROL AND CO – ORDINATION test2CONTROL AND CO – ORDINATION test2CONTROL AND CO – ORDINATION test2CONTROL AND CO – ORDINATION test2
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