CBSE Class 10 Answered

Testosterone is the main sex hormone in males. It is important for the normal sexual development in males. It is also essential for normal sexual activity. In addition, testosterone has important functions to maintain general health and well being of the body. These include maintenance of muscle and bone strength, mental and physical energy, increased production of red blood cells and protection against  osteoporosis. Testosteone is important for sperm formation and development.

In addition to development of reproductive system, testosterone is essential during puberty to bring about the secondary sexual characteristics like a deepening of the voice, growth of the beard etc.

Estrogen is the main female sex hormone. It is essential for normal sexual development in females. During puberty, estrogen is essential to bring about the secondary sexual characteristics like development of breasts, thickening of the endometrium and regulating the menstrual cycle. They also play an important role in development of female reproductive system. They are also important for normal metabolism and bone formation.