Why don’t your cells have a cell wall?
Plant cells have a stiff cell wall round the outside, like a box. Yours don’t: an animal cell has only a thin, bendy membrane. Compare the two cells. Think about what a plant has to do that you don’t, and why soft, bendy cells suit an animal that moves.
Asked by calcali
1 answer
A plant can’t move and has no skeleton, so its cell walls (plus water pressing out from the vacuole) hold it up: a wilting plant is losing that pressure. Animals have skeletons for support, and bendy cells let muscles contract, blood cells squeeze through tiny vessels and white blood cells chase germs.
by calcali