Question

7. Cell walls do a number of important things for plants including

providing them with structural support, putting a limit on the amount
of water they absorb and release, as well as providing general
protection for the cell. But if cell walls are so useful, why don't any
animal cells have them?

Answer 1

Though cell walls provide many important features for plants, animal cells do not need them. The cell wall helps with structure, meaning it helps the plant stand up. If animal cells had cell walls, animals would be incapable of movement.