Question

Where does capacitation of human sperms occur?

• A. Testis
• B. Vagina
• C. Vas deferens
• D. Female genital tract

Hint:

Capacitation is essential for sperm to penetrate and fertilize the egg. It occurs in the female genital tract after ejaculation.

Answer 1

The Correct Option is D

Step 1: Capacitation process.
Capacitation refers to the physiological changes that sperm undergo in the female reproductive tract, which are necessary for fertilization. During capacitation, the sperm's membrane becomes more permeable, allowing it to undergo the acrosome reaction when it contacts the egg.
Step 2: Analyze the options.
- Testis: The testis produces sperm, but capacitation does not occur here. - Vagina: Some capacitation occurs in the vagina, but it is not the primary site. - Vas deferens: This is part of the male reproductive tract where sperm is stored, but capacitation does not occur here. - Female genital tract: This includes the uterus and fallopian tubes, where capacitation is completed, and sperm is prepared for fertilization.
Step 3: Conclusion.
Capacitation primarily takes place in the female genital tract.
Final Answer: \[ \boxed{Female \; genital \; tract} \]