How do cell walls differ from cell membranes?

Answer 1

To put it simply, their cell walls are composed of stiff polysaccharides (plants have cellulose, fungi have chitin, and bacteria have peptidoglycan); in contrast, our cell membranes are essentially lipid bilayers and are not very rigid. This is how their cell walls differ from each other.

This also explains why the stems of plants are far stiffer than the skin of animals.

I hope that was helpful.

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Answer 2

Penelope Adams

Cell membranes are semi-permeable barriers that surround the cytoplasm and organelles of a cell, controlling the passage of substances in and out of the cell. They are primarily composed of proteins and phospholipids. Cell walls, on the other hand, are rigid structures found in plant cells and some other organisms, providing structural support and protection. They are primarily composed of cellulose.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.