Biology Past Questions

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2601

A pupil accidentally "watered" a potted plant with concentrated salt solution after sometime the plant began to wilt.

The wilting of the plant is due to the fact that

A. the root hair die off and can no longer absorb water
B. the salt solution causes faster rate of transpiration leading to the death of the plant cell
C. the salt solution has caused water lost from the plant cell leading to loss of turgor
D. the plant tissue has been poisoned by the salt which is absorbed by the plant

View Answer & Discuss (1) WAEC 2008

2602

A pupil accidentally "watered" a potted plant with a concentrated salt solution. After sometime the plant began to wilt.

Which of the following activities would revive the plant?

A. Covering the plant with dark paper to prevent further water loss from its surfaces
B. Leaving the plant to adapt to the condition
C. Exposing the plant to higher concentration of oxygen
D. Adding more water to the soil

View Answer & Discuss (2) WAEC 2008

2603

Primary growth in plants is brought about by the activity of the