The two glands A and B which occur in pairs, are present in the endocrine system of humans. The pair of glands A is found only in females whereas the pair of glands B occurs only in males. The glands A make and secrete two hormones C and D whereas glands B make and secrete only one hormone E. In addition to hormones, glands A make gametes F whereas glands B make gametes G.

(a) What are glands A ?

(b) What are hormones C and D ?

(c) What are glands B ? Name the hormone E.

(d) What are gametes (i) F, and (ii) G ?

(e) Which event in the life of males and females is associated with the secretion of hormones C, D and E ?

Question 44
Answer the following :

(a) Name the endocrine gland associated with the brain?
(b) Which gland secretes digestive enzymes as well as hormones?
(c) Name the endocrine gland associated with kidneys?
(d) Which endocrine gland is present in males but not in females?

Question 44
Answer the following :

(a) Name the endocrine gland associated with the brain?
(b) Which gland secretes digestive enzymes as well as hormones?
(c) Name the endocrine gland associated with kidneys?
(d) Which endocrine gland is present in males but not in females?

In animals, there are special glands secreting hormones, whereas there are no glands in plants. Where are plant hormones formed? How are the hormones translocated to the site of activity?