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Which one of the following statements about human sperm is correct?

  1. A
    Acrosome serves no particular function.
  2. B
    Acrosome has a conical pointed structure used for piercing and penetrating the egg.
  3. C
    The sperm lysins in the acrosome dissolve the egg envelope facilitating fertilization.
  4. D
    Acrosome serves as a sensory structure leading the sperm towards the ovum.

Solution & Step-by-step Explanation

The acrosome is a cap-like structure at the tip of the sperm head, filled with enzymes called sperm lysins (e.g., hyaluronidase). These enzymes function to dissolve the egg envelopes (zona pellucida and corona radiata), allowing the sperm to penetrate the egg for fertilization.Shutterstock

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Which one of the following statements about human sperm is correct?
A
Acrosome serves no particular function.
B
Acrosome has a conical pointed structure used for piercing and penetrating the egg.
C
The sperm lysins in the acrosome dissolve the egg envelope facilitating fertilization.
D
Acrosome serves as a sensory structure leading the sperm towards the ovum.

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Human ReproductionSperm StructureAcrosome

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