AP BIOLOGY

Detailed explanation-1: -Cell wall is a boundary, present outside the plasma membrane or cell membrane. It is made up of cellulose and is present only in plant cells. It is not present in an animal cell.

Detailed explanation-2: -Animal cells do not have cell wallsbecause they do not need them. Cell walls, which are found in plant cells, maintain cell shape, almost as if eachcell has its own exoskeleton. This rigidity allows plants to stand upright without the need for bones .

Detailed explanation-3: -Answer and Explanation: Three structures that are found in plant cells but not in animal cells are chloroplasts, a cell wall and a large, central vacuole.