Biology Reproduction UHS 2023
PMDC Verified Question 24 of 81
The function of hyaluronidase enzyme is:
A
Penetration of the sperm into the ovum
B
Entrance of sperm into the vagina
C
Entrance of the sperm into the fallopian tube
D
Inactivation of sperms after their failure to fertilize ovum
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option A: Penetration of the sperm into the ovum
Concept:

Fertilization requires the sperm to chemically dissolve barriers surrounding the mammalian egg.

Solution:

  • The head of a mature sperm contains an organelle called the acrosome, which is packed with digestive enzymes.


  • Upon reaching the egg, the acrosome releases hyaluronidase.


  • This enzyme digests the hyaluronic acid holding the cells of the corona radiata together, facilitating the penetration of the sperm through the outer layers into the ovum.


Why other options are incorrect:

Sperm rely on muscular contractions of the female tract and their own flagellar motility to move through the vagina and fallopian tubes, not enzymes. Enzymes are strictly for breaching the egg's direct protective layers.

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.

Previous Question All Reproduction MCQs Next Question

Want to solve full-length papers under timed exam conditions?

Practice with zero-scroll lockdown sprints, dynamic latency zone timers, live peer selection telemetry, and the automated Amber mistake recovery loop.

Enter Arena Sprint iOS App Android App