In evaluating the provided statements, we need to differentiate the roles of FSH in the human reproductive system and the effects of secretions from respective cells.
Assertion A: FSH acts upon ovarian follicles in females and Leydig cells in males.
Reason R: Growing ovarian follicles secrete estrogen in females while interstitial cells secrete androgen in male human beings.
- FSH or Follicle Stimulating Hormone is primarily known to stimulate ovarian follicles in females, leading to the production of estrogen. In males, however, FSH mainly acts on the Sertoli cells in the testes, which aid in sperm maturation. Leydig cells, on the other hand, are stimulated by LH (Luteinizing Hormone) rather than FSH. Therefore, Assertion A is incorrect regarding Leydig cells.
- Reason R accurately describes that growing follicles in females secrete estrogen and that interstitial (Leydig) cells in males produce androgens (such as testosterone). Thus, the stated reason is true.
Upon analysis, it is clear that the correct choice is: A is false but R is true.