NEETBiologyHuman ReproductionMCQ+4 / −1
Which one of the following statements about
human sperm is correct?
- AAcrosome has a conical pointed structure used for piercing and penetrating the egg, resulting in fertilisation
- BThe sperm lysins in the acrosome dissolve th egg envelope facilitating fertilisation
- CAcrosome serves as a sensory structure leading the sperm towards the ovum
- DAcrosome serves no particular function
View written solutionFree
Correct answer: B
Acrosome is the cap-like structure on the front end of a spermatozoan. It breaks down just before fertilisation (the acrosome reaction), releasing a number of hydrolytic enzymes, also called sperm lysins that assist penetration between the follicle cells that still surround the ovum, thus facilitating fertilisation. Failure of the acrosome reaction is a cause of male infertility.
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