What is epidermis in plants?

What is epidermis in plants?

• A. A vascular tissue for transport
• B. Outer layer that covers roots, stems, and leaves
• C. The reproductive organ of the flower
• D. Ground tissue for storage

Answer: (B)

The epidermis is the outermost protective layer that covers roots, stems, and leaves. It is usually a single cell layer thick and serves to shield internal tissues from damage and pathogens while often having a waxy cuticle to reduce water loss. It also includes openings called stomata that regulate gas exchange, with guard cells controlling when they open and close. This tissue is distinct from the vascular system that transports water and nutrients, from the reproductive organs of flowers, and from ground tissue used for storage. So, the epidermis matches the description of the outer layer that covers roots, stems, and leaves.

The epidermis is the outermost protective layer that covers roots, stems, and leaves. It is usually a single cell layer thick and serves to shield internal tissues from damage and pathogens while often having a waxy cuticle to reduce water loss. It also includes openings called stomata that regulate gas exchange, with guard cells controlling when they open and close. This tissue is distinct from the vascular system that transports water and nutrients, from the reproductive organs of flowers, and from ground tissue used for storage. So, the epidermis matches the description of the outer layer that covers roots, stems, and leaves.