Question

What is the function of the cell wall?

Answer 1

Hint:-A structural membrane or layer that surrounds some kinds of cells, or is present outside the cell membrane is known as the Cell wall. It may be hard, flexible, and periodically harsh. Cell walls exist in many prokaryotes in algae, fungi and eukaryotes. Along with plants but non-existent in animals.

Complete Answer:-It provides mechanical strength to the cell because of the presence of the skeletal framework forked by cellulose microfibrils. Cellulose is present in paper, cotton etc. Hence maximum strength is provided by the collenchyma and sclerenchyma.The boundary of isolated protoplasm is the plasma membrane i.e. the main site for cellulose synthesis and cellulose is the main component of the cell wall. The cell wall components like lignin and pectin enclose the plasma membrane. Hence the cell wall provides the shape of the cell.

The main objective is to behave as pressure vessels. Because it controls cell expansion when water enters. Expansion of the cell relies on the elastic and plastic character of the cell wall.
Cell wall regulates intercellular transport between the plant cells. Because transport of an entity among 2 cells happens by the assistance of a cell wall. Such transport is of two types: apoplastic (transport of substance through the cell wall matrix) and symplastic (transport of substance through plasmodesmata present between the 2 cells). Cell wall surrounds the cell. Hence it gives protection to the cell against any physical injury.

Note:- The foods may be stored in the cell or as the factor of a cell wall. In the cell wall, polysaccharides like mannans, xyloglucans and Galatians are present. A cell produces the inhibitor proteinases, which decrease the protein of host and inhibitors and prevent the protein from degradation. So, when the pathogen attacks cell wall polysaccharide degrades into oligosaccharide.