Biology
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Past papers:80 questions
A Level Biology — Reproduction and Development · MediumQuestion
At the start of fertilisation, many sperm cells will surround the ovum. (a) Fertilisation begins with the acrosome reaction. (i) Which of the following describes the acrosome reaction? (1)
- A. the ovum releases enzymes that digest the egg cell membrane
- B. the ovum releases enzymes that digest the zona pellucida
- C. the sperm cell releases enzymes that digest the egg cell membrane
- D. the sperm cell releases enzymes that digest the zona pellucida
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A Level Biology — Reproduction and DevelopmentAnswer
Correct answer
D. the sperm cell releases enzymes that digest the zona pellucida
the sperm cell releases enzymes that digest the zona pellucida
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