Question

what is lignin? How is it form?

Answer 1

Lignin is a chemical compound which is found in the secondary cell walls of xylem, fibres, sclereids. Lignin is a hard substance with great tensile and compressional strength which means that it does not break and deform easily.

Lignin is formed by removal of water from sugars to create aromatic structures. These reactions are not reversible. There are many possible monomers of lignin, and the typesand proportions depend on the source in nature. 



or


Lignin is a chemical compound which is found in the secondary cell walls of xylem, fibres, sclereids. Lignin is a hard substance with great tensile and compressional strength which means that it does not break and deform easily.

Controlling the rate of diffusion, a potential role of

the cell wall matrix, forces the formation of lignin

into a stepwise addition of monolignols to the growing

polymer. Lignin arises primarily from the addition

of monolignols to the continually growing polymer

(Adler, 1977) and not from the coupling of

monolignols to produce dimers, as postulated by the

dirigent protein model.

Answer 2

hey!!✌✌
ur answer is. ........
Lignin is a class of complex organic polymersthat form important structural materials in the support tissues of vascular plants and some algae.[1] Lignins are particularly important in the formation of cell walls, especially in woodand bark, because they lend rigidity and do not rot easily. Chemically, lignins are cross-linked phenolic polymers.[2]
HOPE IT HELPS U