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Which one of the following statements about human sperm is correct?
Acrosome has a conical pointed structure used for piercing and penetrating the egg, resulting in fertilisation.
The sperm lysins in the acrosome dissolve the egg envelope facilitating fertilisation.
Acrosome serves as a sensory structure leading the sperm towards the ovum.
Acrosome serves no particular function.
Solution
(b) : Acrosome is the caplike 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.
