Question

4.
Lignin is present in
(a) parenchyma
(c) phleom
(b) xylem
(d) bundle sheath
​

Answer 1

It is present in parenchyma.

Answer 2

Answer:

Lignin is a constituent of the cell walls of almost all dry land plant cell walls. ... Of the polymers found in plant cell walls,lignin is the only one that is not composed of carbohydrate (sugar) monomers. Ligninis unique in that it is the only large-scale biomass source of an aromatic functionality.