Question

Most abundant water insoluble polysac-
charide of plant cell wall is
1) - Hemicellulose
2) Cellulose
3) Pectin
4) Lignin​

Answer 1

Answer:

Cellulose.

✒The most abundant water-insoluble polysaccharide of the plant cell wall is cellulose.

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Answer 2

Answer:

option D lignin

Explanation:

Most abundant water insoluble polysaccharide of plant cell wall is lignin. Lignin is a complex polymer of aromatic alcohols known as monolignols. It is most commonly derived from wood and is an integral part of the secondary cell walls of plants. Lignin fills the spaces in the cell wall between cellulose, hemicellulose and pectin components, especially in xylem tracheids, vessel elements and sclereid cells.

It is covalently linked to hemicellulose and therefore, crosslinks different plant polysaccharides, conferring mechanical strength to the cell wall and by extension the plant as a whole.

Thus, the correct answer is option D.