Question

Identify the correct statements:

1. Lenticels are the lens-shaped openings permitting the exchange of gases.
2. Bark formed early in the season is called hard bark.
3. Bark is a technical term that refers to all tissues exterior to vascular cambium.
4. Bark refers to periderm and secondary phloem.
5. Phellogen is single-layered in thickness.

Choose the correct answer from the options given below:

विकल्प

• A and D only.

• A, B and D only.

• B and C only.

• B, C and E only.

Answer 1

A and D only.

Explanation:

Lenticels are lens-shaped, porous tissues that allow gaseous exchange. Bark consists of the periderm and secondary phloem. The inner soft bark, called bast, is formed by the vascular cambium and is made up of secondary phloem tissue.

The remaining statements are incorrect: Bark formed at the beginning of the season is termed soft bark. Bark includes all tissues present outside the vascular cambium, including secondary phloem, periderm, and cork cambium. Phellogen is several layers thick.