Question

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.

1. What are the glands A?
2. What are the hormones C and D?
3. What are the glands B? Name the hormone E.
4. What are the gametes F and G?
5. Which event in the life of males and females is associated with the secretion of the hormones C, D and E?

Answer 1

1. The glands A are the ovaries.
2. The hormones C and D, secreted by the ovaries, are oestrogen and progesterone, respectively.
3. The glands B are the testes. The hormone E, released by the testes, is testosterone.
4. The gametes F are ova or eggs. They are produced by the ovaries. The gametes G are sperm. Sperms are produced by the testes.
5. The secretion of hormones C (oestrogen) and D (progesterone) in females and hormone E (testosterone) in males are associated with puberty.