Biology Reproduction NUMS 2022
PMDC Verified Question 43 of 81
In male reproductive system, the hormone involved in regulation of rate of spermatogenesis is called:
A
Luteinizing hormone
B
Follicle stimulating hormone
C
Testosterone
D
Inhibin
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option D: Inhibin
Concept:

Negative feedback loops are essential for maintaining a constant rate of sperm production.

Solution:

  • When the rate of spermatogenesis is high, Sertoli cells within the seminiferous tubules secrete a peptide hormone called inhibin.


  • Inhibin travels to the anterior pituitary and directly inhibits the release of Follicle Stimulating Hormone (FSH).


  • By suppressing FSH, it slows down spermatogenesis to a normal, regulated rate.


Why other options are incorrect:

FSH and Testosterone stimulate spermatogenesis. LH stimulates testosterone production. While all are involved in the process, inhibin is the specific negative-feedback regulator that fine-tunes the rate.

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

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