A) acrosome
B) antrum
C) sertoli cells
D) enzymes
Correct Answer: A
Solution :
The anterior portion of the sperm head which is covered by cap-like structure is called acrosome. It contain hydrolytic enzyme called sperm 1ysins, e.g., acrosin, hyaluronidase and neuraminidase (a trypsin like enzyme). Besides acrosomes, head also contain a lightly fitting nucleus, whose shape is species specific. Another regions of human sperm are neck, middle piece and tail (flagellum).
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