Question

what is cell wall??????​

Answer 1

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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. ... In bacteria, the cell wall is composed of peptidoglycan.

Answer 2

Answer:

A cell wall is the outer covering of plants.

Due to the presence of cell wall the plants are rigid.

It allows only few substances to pass through it.

It is not present in animal cells.