10. Write a short note on

(b) Adaptations of plants to water scarcity

Answers (1)
S Sonika

(b) Adaptations of plants to water scarcity

Plants found in desserts are well adapted to cope with water scarcity and scorching heat of the desert. Some of these adaptations are as follows:

1. Plants have an extensive root system to tap underground water.

2. They bear thick cuticles and sunken stomata on the surface of their leaves to reduce transpiration.

3. In Opuntia, the leaves are modified into spines and the process of photosynthesis is carried out by green stems.

4. Desert plants have special pathways to synthesize food, called CAM (C4 pathway). It enables their stomata to remain closed during the day to reduce water loss by transpiration.

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