Question

what is lignin in plant biology​

Answer 1

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Answer 2

Answer:

Lignin is a class of complex organic polymers that form key 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 wood and bark, because they lend rigidity and do not rot easily. Chemically, lignins are cross-linked phenolic polymers.[2]

An example of a possible lignin structure. The portion shown here (not counting the side chain denoted "Carbohydrate") has 28 monomers (mostly coniferyl alcohol), 278 carbon atoms, 407 hydrogen atoms, and 94 oxygen atoms (64% carbon, 8% hydrogen, and 29% oxygen by weight) higher hydrogen content

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