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The diagram shows a sperm cell from a human and a sperm cell from a mouse - Edexcel - GCSE Biology - Question 4 - 2016 - Paper 1
Question 4
The diagram shows a sperm cell from a human and a sperm cell from a mouse. Human Overall length 40 µm Mouse Overall length 100 µm (a) Calculate how many times l... show full transcript
Worked Solution & Example Answer:The diagram shows a sperm cell from a human and a sperm cell from a mouse - Edexcel - GCSE Biology - Question 4 - 2016 - Paper 1
Step 1
Calculate the ratio of the mouse sperm cell length to the human sperm cell length
Answer
To find out how many times longer the mouse sperm cell is than the human sperm cell, we can use the following formula:
ext{Ratio} = rac{ ext{Length of mouse sperm cell}}{ ext{Length of human sperm cell}} = rac{100 ext{ µm}}{40 ext{ µm}}This simplifies to:
ext{Ratio} = rac{100}{40} = 2.5Thus, the mouse sperm cell is 2.5 times longer than the human sperm cell.