IGCSE Biology Paper-3: Specimen Questions with Answers 137 - 141 of 358

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Question 137

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Choose words from the list to complete each of the spaces in the paragraph. Each word may be used once only and some words are not used at all.

Oxygen respiration tissues carbon dioxide Water ATP

. defined as the movement of … from the outside air to the cells within … In addition, the transport of … in the opposite direction.

Explanation

Respiration defined as the movement of oxygen from the outside air to the cells within tissues in addition, the transport of carbon dioxide in the opposite direction.

Question 138

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New technologies are used to enhance the productivity of crops.

Write two disadvantage of chemical fertilizers

Explanation

(i) degradation of water quality due to extra nitrogen accumulation

(iii) decrease the soil՚s quality

Passage

Figure shows the female reproductive system.

Female Reproductive System Inner Structure with All Its Parts

Question 139 (1 of 3 Based on Passage)

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Name the structures labelled A, B and C?

Explanation

A-Fallopian tube

B- Ovary

C-vagina

Question 140 (2 of 3 Based on Passage)

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Describe two changes in females due to high level of estrogen.

Explanation

Enlargement of breasts, growth of body hair, widening of hips.

Question 141 (3 of 3 Based on Passage)

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In female secondary sexual characteristics are stimulated by?

Explanation

estrogen

Developed by: