Question

Why plant cells have an additional layer surrounding the cell membrane? What is this layer known as ?

Answer 1

Answer:

cell wall

Explanation:

to provide the plant rigidity

Answer 2

Answer:

Plant cells have an additional layer surrounded by the cell membrane as they cannot move. This is known as the cell wall. The cell wall is a fully permeable layer which covers the plant cell membrane to provide protection on a sub-cellular level. This also protects the plant from various weather changes.

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