Multiple choice

The human sperm is equipped with proteolytic enzymes capable to digest the zona pellucida. These enzymes are located at

  1. cumulus

  2. acrosome

  3. corona

  4. head

  5. foreskin
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The acrosome is the part of the sperm containing proteolytic enzymes to digest the zona pellucida. It is exposed by the process of capacitation. Then, under the influence of substances released by corona radiata cells, it releases its proteolytic enzymes and penetrates the oocyte.

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