Question

Small pores on the surface of a mature stem are called ____.

• A. Stomata
• B. Lenticels
• C. Chloroplast
• D. None of these

Answer 1

The correct option is B

Lenticels

The correct option is (B):
Explanation of the correct option:

1. Lenticels are small porous tissues present on the surface of mature woody stems.
2. They help in the exchange of gasses i.e. CO₂ and O₂ between atmosphere and internal tissues.

Explanation of the incorrect options:

Option (A):

1. Stomata are tiny pores or openings present on the surface of the leaf.
2. It helps in the exchange of gasses i.e. CO₂ and O₂ during respiration and also helps in transpiration.

Option (C):

Chloroplast is a cell organelle which is the site of photosynthesis in plants.

Final answer: Small pores on the surface of a mature stem are called lenticels.