Question

What is the chemical substance that makes the cells of the sclerenchyma hard ? Where is this present

Answer 1

Explanation:

the chemical substance that makes scelerenchyma hard is lignin it is found in the cells,cellwall,and between the cells of all vascular plants

Answer 2

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It is made up of lignin. Note:Examples for the parenchyma cells are in the fruit, leaves, petioles, seeds etc. The collenchyma cells are located in the young part of the step and can break with the small amount of force. The example of sclerenchyma cells are the stem regions at the base and are very hard to break.