Question

Which is not a function of the epidermis?

• A. Protection from adverse condition
• B. Gaseous exchange
• C. Conduction of water
• D. Transpiration

Answer 1

The correct option is C

Conduction of water

The correct option is C.

Explanation of correct option:

1. In botany, the epidermis is the outermost layer of cells generated from the protoderm that covers the stem, root, leaf, flower, fruit, and seed sections of a plant.
2. The waxy cuticle of the epidermis acts as a barrier against infection, water loss, and mechanical harm.
3. The forces that aid in the conduction of water include the transpiration pull, capillary action, and adhesion force.
4. Water conduction usually takes place in vascular tissues, a specialized structure.
5. Two vascular tissues are the xylem and phloem.

Explanation of incorrect options:

Option A:

The epidermis is the outermost layer of plants that helps in the protection of plants from unfavorable environmental conditions.

Option B:

The gaseous exchange also occurs in the epidermis. The stomatal cells are the sites of gaseous exchange.

Option D:

There are various cells that are modified from the epidermis that perform the function of transpiration.

Final answer: Conduction of water is not the function of the epidermis.