Question

arenchyma define
and what is lignin

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Answer 1

Lignin is a class of complex organic polymers that form key structural materials in the support tissues of vascular plants and some algae. Lignins are particularly important in the formation of cell walls, especially in wood and bark, because they lend rigidity and do not rot easily.

Answer 2

Answer:

arenchyma is type of parenchyma and lignin is deposttion of scelrenchyma