Question

what is the chemical substance that makes the cells of the sclerenchyma hard? Mention where this tissue is likely to be present ?
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Answer 1

Answer:

sclerenchyma cells are usually dead cells that have heavily thickened secondary walls containing lignin.

Answer 2

Sclerenchyma is hard due to the presence of a chemical named Lignin. It is mainly found in the cortex of the stems, its main function is to support the plant.

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