Epidermal is associated with

Options

A. Respiration
B. Guttation
C. Transpiration
D. Photosynthesis

Answer

### Step-by-Step Solution:

1. **Understanding the Epidermal Layer**: The epidermis is the outermost layer of cells in plants, serving as a protective barrier. It is found on various parts of the plant, including leaves, stems, and roots.

2. **Identifying Functions of the Epidermis**: The epidermis has several functions, but one of its key roles is associated with the stomata, which are small openings on the leaf surface.

3. **Role of Stomata**: The stomata are crucial for gas exchange. They allow carbon dioxide to enter the leaf for photosynthesis and oxygen and water vapor to exit.

4. **Transpiration Process**: One of the primary functions associated with the epidermal layer and stomata is transpiration. This is the process where water vapor is lost from the plant to the atmosphere, primarily through the stomata.

5. **Distinguishing Other Processes**: While respiration, guttation, and photosynthesis are important processes in plants, they are not directly associated with the epidermal layer. Respiration occurs throughout the plant, guttation involves specialized structures called hydathodes, and photosynthesis primarily occurs in chloroplasts found in the mesophyll cells of leaves.

6. **Conclusion**: Therefore, the correct answer to the question "Epidermal is associated with?" is **transpiration**.