Question

What is lignin? Define with a clarified answer.

Answer 1

Answer:

Lignin is a complex polymer of monolignols (which are aromatic alcohols). It is insoluble in water and alcohol, but soluble in weak alkaline solutions. It is the second most abundant organic polymer on Earth (behind cellulose, another plant component) and makes up about 30% of non-fossilized organic carbon.↩↩↩

Answer 2

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a complex organic polymer deposited in the cell walls of many plants, making them rigid and woody.

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