Question

After the leaf falls in the autumn, which of the following is the only site of water loss in deciduous trees?

• A. Cuticle
• B. Lenticel
• C. Stomata
• D. Bark

Answer 1

The correct option is B

Lenticel

The correct option is B.

Explanation of the correct option:

1. Lenticels present in the barks of the trees possess stomata that are always open and guard cells are absent.
2. Continuous water loss occurs through stomata.
3. Thus, lenticels are the only site of water loss in deciduous trees after leaf falls in autumn.

Explanation of the incorrect options:

Option A:

A cuticle is a layer of wax-like that covers the epidermis of leaves and herbaceous stems.

Option C:

Stomata are the minute pores found in the epidermal layer of leaves and green stems that influence the rate of transpiration.

Option D:

In deciduous trees, bark insulates the tree during winter and provides protection from low temperatures.

Final answer: After the leaf falls in the autumn, lenticel is the only site of water loss in deciduous trees.