Question

Q. Which of the following statements is/are correct regarding adaptation in Xerophytes?

Select the correct option using the codes given below:

• A. 1 only
• B. 3 only
• C. 1 and 2 only
• D. 2 and 3 only

Answer 1

The correct option is D 2 and 3 only

Explanation:

Statement 1 is incorrect:

• Xerophytes have thick cuticles on their leaf surfaces.

Statement 2 is correct:

• Many desert plants have a thick cuticle on their leaf surfaces and have their stomata arranged in deep pits (sunken) to minimise water loss through transpiration.
• They also have a special photosynthetic pathway (CAM) that enables their stomata to remain closed during the daytime.

Statement 3 is correct:

• Some desert plants like Opuntia, have no leaves they are reduced to spines and the photosynthetic function is taken over by the flattened stems