CBSE Class 10 Answered

Testosterone is the male sex hormone. It stimulates the development of the male reproductive system, especially the penis and testes. In addition, it is important for the development of the secondary sexual characters in males like growth of facial and pubic hair, deepening of the voice and changes in body shape. It is also important for the growth of bones, and increased muscle mass and strength in males. It helps maintain sex drive and the production of sperm cells, and it may play a role in balding.

Oestrogen is the sex hormone present in females. They promote the development of female secondary sex characteristics, such as breasts, and are also involved in the thickening of the endometrium and other aspects of regulating the menstrual cycle. Oestrogen increases uterine growth. They reduce bone resorption and increase bone formation.

In males, estrogen regulates certain functions of the reproductive system important to the maturation of sperm.