Question

Write two major functions each of testis and ovary.


NCERT Class XII
Biology - Main Course Book

Chapter 3. Human Reproduction

Answer 1

1. Testes are the primary male sex organs which are the sites of spermatogenesis(production of sperms).
2. Leydig cells of testis produce androgens, the most important of which is testosterone. (this hormone controls the development of secondary sexual characters and spermatogenesis).

1.Ovaries are the primary female sex organs that produce the female gametes(ova) by oogenesis.
2. They also produce several steroid hormones(ovarian hormones).

Answer 2

Answer:

Two major functions of each are as follows:

Testis:

• The process of spermatogenesis produces sperms through the seminiferous tubules

• Testosterone, the male sex hormone is secreted by the Leydig cells

Ovary:

• In the process of oogenesis, ovaries produces ova

• Progesterone and oestrogen, the female sex hormones are secreted