Question

why does a animal cell does not have a cell wall ?

Answer 1

As animals are capable of moving from one place to other, they are capable of protecting themselves, but plants have their roots deep inside ground hence cannot move to different place so plant cells have cell wall as outermost covering. Cell wall protects them from the outside environment.It can withstand dilute hypotonic media and prevents bursting of cells. Therefore, plant cells withstand changes in environmental concentration better than animal cells.