Page 2 - Assignment-Chemical conrol and coordination

8. ______________ is a chemical substance that is released by an organism that
can affect the behaviour of another individual of the same species.
1. Pheromone
2. Androgen
3. Testosterone
4. All of the above
9. The deficiency of adrenal cortex hormones can lead to _______
1. Dwarfism
2. GERD
3. Addison’s Disease
4. Acromegaly
10. If too much growth hormone is released during the growth period, it can cause
________
1. Acromegaly
2. Crohn’s Disease
3. Gigantism
4. None of the above

B. Very Short Answer Questions (1 mark each)

1. Which two systems coordinate and regulate physiological functions of our body ?
2. What is the role of melanocyte stimulating hormone ?
3. Name the hormones which act antagonistically in order to regulate calcium levels
in the blood.
4. Give the names of any one glucocorticoid and one mineralocorticoid.
5. How does artrial natriuretic factor decreases blood pressure ?
6. Which structure is formed from ruptured follicle in females ? What is its role ?
7. Immunity of old persons becomes very weak. Give reason.

C. Short Answer Questions-II (2 marks each)

8. What happens if a person suffers from prolonged hyperglycemia ?
9. What are the two modes through which the hypothalamus causes the release of
hormones by pituitary gland ?
10. Androgens regulate the development, maturation and other important functions
in human male. List them.

D. Short Answer Questions-I (3 marks each)

11. Define hormone and classify them on basis of their chemical nature.
12. How do oxytocin, progesterone and estrogen differ from each other ?