Question

Choose the incorrect statement with respect to physiology of mature sperms.

• A. Sperms present in epididymis for 18-24 hours develop capacity of motility
• B. Average velocity of sperms through the fluid may be 1-4mm/minute
• C. Strong acidic medium can cause rapid death of sperms
• D. Most of the energy for sperm motility is derived from the lipids present in the seminal fluid

Answer 1

The correct option is D Most of the energy for sperm motility is derived from the lipids present in the seminal fluid

After the production of sperms, they travel to the epididymis. After the sperms have been in the epididymis for 18-24 hours, they develop the capability of motility.

The normal motile, flagellated sperms move through the fluid medium at velocities of 1-4mm/min. Sperms are more active in a slightly alkaline medium. A strong acidic medium can cause the rapid death of sperms.

In animals, most of the energy (ATP) for sperm motility is derived from the metabolism of fructose carried in the seminal fluid. The energy is produced by the mitochondria present in the sperm.