Question

Sunken stomata occur in the leaves of

• A. Lemma
• B. Nerium
• C. Lilium
• D. Trifolium

Answer 1

The correct option is B Nerium

Nerium grows in an arid region and faces high temperature. The rate of transpiration is high and leads to heavy loss of water. It needs to preserve water by curtailing the rate of transpiration. The sunken stomata trap moist air which reduces diffusion and reduces water loss. Plants with sunken stomata often have fewer stomata in general than plants.

So, the correct answer is option B.