Question

What is the difference between epidermis and endodermis?

Answer 1

Endodermis:

1. The endodermis is the inner cell layer.
2. The endodermis is composed of closely packed cells.
3. It is single-layered.
4. It acts as a separating layer between the cortex and the vascular tissue of the plant.

Epidermis:

1. The protective outer layer of the plant.
2. It is single-layered.
3. It provides a barrier between plant cells and the external environment.
4. Some cells of the epidermis are modified into guard cells and stomata.

Difference between epidermis and endodermis:

Endodermis:	Epidermis:
1. Endodermis refers to the inner cell layer of the plant cortex that surrounds the vascular bundle.	1. The epidermis refers to the outermost layer of the plant, which is replaced by the periderm during secondary growth in the stem and roots.
2. The cells of endodermis have Casparian strips inside their walls and water-impermeable deposits of suberin that regulate the absorption of water and minerals by the roots.	2. Epidermis has a cuticle layer which prevents water loss.
3. Found between the cortex and vascular tissue.	3. Found in the outermost layer of stems and roots.
4. Contains tightly packed cells.	4. Contains cells with thick walls.
5. Containing a starch coating.	5. Contains a cuticle and stomata.