Question

What is cell wall ? Explain its characteristics and functions pointwise .



Class 9th
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Answer 1

Explanation:

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Answer 2

Answer:

• It is an outer rigid, protective and supportive covering of plant cell called cell wall.

• characteristics of cell wall

A cell wall is a structural layer surrounding some types of cells, just outside the cell membrane. It can be tough, flexible, and sometimes rigid. It provides the cell with both structural support and protection, and also acts as a filtering mechanism.

• Functions

1 .   The main functions of the cell wall are to provide structure, support, and protection for the cell.

2.   The cell wall in plants is composed mainly of cellulose and contains three layers in many plants.

3.   The three layers are the middle lamella, primary cell wall, and secondary cell wall.

Explanation:

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