in xerophytes rate of water loss gets reduced due to covering of epidermis by:. a.) cutin b.) suberin. c.) lignin d.) gum
Answers
in xerophytes rate of water loss gets reduced due to covering of epidermis by:.
Lignin
Answer:
The correct answer is (a) Cutin.
Explanation:
in xerophytes rate of water loss gets reduced due to covering of epidermis by Cutin
What is Cutin?
Cutin:
Cutin is a waxy water repellent substance found in the cuticle of plants, made up from highly polymerized esters made of fatty acids. Its primary purpose is the protection of the layers beneath it. Desert plants contain a lot of cutin in their leaves so that they can prevent the loss of water through transpiration.
Suberin
Suberin is an oil-like wax substance that is found within cork cell walls as well as between cells. In alkaline hydrolysis, it produces predominantly suberic acid. Suberin is very hydrophobic and serves to block water from getting into the tissue.
Lignin
Lignin is an organic chemical belonging to a class made up of aromatic alcohols. It is produced naturally by specific plants (especially woody plants as well as specific algal species). It is located in the cell walls of secondary cells of plants. It acts as a binder to cellulose fibers. It also provides stiffness to cell walls.
Hence, option A) Cutin is the correct answer.