Figure 13 shows a sperm cell - Edexcel - GCSE Biology - Question 9 - 2021 - Paper 1
Question 9
Figure 13 shows a sperm cell.
Describe how structure A and structure B enable fertilisation.
structure A
structure B
Worked Solution & Example Answer:Figure 13 shows a sperm cell - Edexcel - GCSE Biology - Question 9 - 2021 - Paper 1
Step 1
Structure A
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Answer
Structure A is the mitochondria, which release energy necessary for the movement of the sperm. This energy is crucial for the sperm's motility, enabling it to swim effectively towards the egg.
Step 2
Structure B
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Answer
Structure B is the acrosome, which contains enzymes that help the sperm penetrate the egg's outer membrane. These enzymes facilitate the fusion of the sperm with the egg, which is essential for fertilisation.
