What is epidermal cell?
Answers
Answer:
epidermal cells are the outermost layer of a primary plant body
Answer:
The epidermis is the outermost cell layer of the primary plant body. ... Epidermal cells are tightly linked to each other and provide mechanical strength and protection to the plant. The walls of the epidermal cells of the above ground parts of plants contain cutin, and are covered with a cuticle.
Explanation:
The epidermis is the outer of the two layers that makes up the skin. The epidermal cells perform a barrier function in human body, protecting against invasion of bacteria and foreign particles and regulating the amount of water released from the body.
Epidermis, in botany, outermost, protoderm-derived layer of cells covering the stem, root, leaf, flower, fruit, and seed parts of a plant. ... Various modified epidermal cells regulate transpiration, increase water absorption, and secrete substances.
The epidermis is composed of multiple layers of flattened cells that overlie a base layer (stratum basale) composed of columnar cells arranged perpendicularly. The rows of cells develop from stem cells in the basal layer.
The epidermis serves several functions: it protects against water loss, regulates gas exchange, secretes metabolic compounds, and (especially in roots) absorbs water and mineral nutrients
The skin has three histologically different layers: outermost epidermis, middle dermis and innermost hypodermis. The epidermis is stratified epithelium, sitting on basement membrane. Innermost basal layer gives rise to new cells continuously, while cells reaching outermost layer are all dead.
What are the characteristic features of epidermal cells?
It is covered by a waxy coating substance called cuticle.
It consists of two parts : upper epidermis and lower epidermis.
It protects the internal organs from various pathogens and other substances.