iGCSE Biology (0610)-16.4 Sexual reproduction in humans – iGCSE Style Questions Paper 2

Question

In sexual reproduction in humans, why are sperm cells produced in much greater numbers than
        egg cells?
        A More than one sperm cell fertilizes an egg.
        B Sperm cells are small in size.
        C Sperm cells live for only a short time.
        D The chance of one sperm cell reaching an egg is very small.

Answer/Explanation

Ans

D

Question

Which describes a human male gamete?

     

Answer/Explanation

Ans

B

Question

The diagram shows a sperm cell.
Which part contains mitochondria to release energy for movement?

Answer/Explanation

Ans: B

Question

What will happen if a woman smokes during pregnancy?
A    Nicotine can cross the placenta and affect the fetus.
B    Nicotine can cause COPD in the lungs of the fetus.
C    The woman can become addicted to carbon monoxide.
D    Carbon monoxide can cause cancer in the lungs of the fetus.

Answer/Explanation

Ans
A

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