Question

Loosely arranged parenchyma cells in Lenticels:

• A. Epithem
• B. Hydathode
• C. Stomata
• D. Complementary cells

Hint:

Lenticels are associated with secondary growth and are formed by phellogen, which produces complementary cells on the outer side for gas exchange.

Answer 1

The Correct Option is D

Step 1: Understanding Lenticels:
Lenticels are lens-shaped openings in the bark of woody trees that permit the exchange of gases between the outer atmosphere and the internal tissue of the stem.
Step 2: Cellular Structure:
Beneath the pore of a lenticel, the cork cambium (phellogen) produces a mass of loosely arranged, thin-walled, colourless parenchyma cells towards the outside instead of regular cork cells. These cells enclose intercellular spaces to facilitate gas exchange.
Step 3: Identification:
These loosely arranged cells are specifically called Complementary cells.
Epithem: Tissue found in hydathodes.
Hydathode: Structure for guttation.
Stomata: Pores on leaves for transpiration.
Therefore, the correct answer is Complementary cells.