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For how long does sperm remain functional and capable of fertilization?

1. Sperm remains functional for a duration of 2-3 days.
2. The acrosome, a pointed structure at the tip of the sperm's nucleus, releases enzymes just before fertilization to aid in penetrating the follicle cells surrounding the egg.
3. Sperm production in adult human testes involves three key stages: multiplication, growth, and maturation. Germ cells transform into spermatogonia, then spermatocytes, which further develop into spermatids and finally into sperm cells.
4. The process of spermatogenesis, which leads to the production of mature sperm, takes approximately 74 days.

Correct answer: Sperm remains functional for a duration of 2-3 days.

Solution

Option (a) is correct because sperm remains viable for 2-3 days in the female reproductive tract, which is a well-established biological fact. The other options describe different aspects of spermatogenesis and fertilization but do not address the viability of sperm.

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