LIFE SCIENCE

Detailed explanation-1: -Plant cells and animal cells differ from each other concerning some organelles. Cell walls are the rigid outer covering layer of the plant cell. It is made up of cellulose and polysaccharides that makes it tough and gives rigidity to plant cells. This is the reason that plant cells remain more rigid than animal cells.

Detailed explanation-2: -The walls of neighboring plant cells, cemented together to form the intact plant (Figure 19-68), are generally thicker, stronger, and, most important of all, more rigid than the extracellular matrix produced by animal cells.

Detailed explanation-3: -All cells have a cell wall. Plant cells are surrounded by a cell membrane and outside this is a fairly rigid cell wall. The cell wall gives the plant cell a more definite shape than an animal cell.

Detailed explanation-4: -Beyond size, the main structural differences between plant and animal cells lie in a few additional structures found in plant cells. These structures include: chloroplasts, the cell wall, and vacuoles.

Detailed explanation-5: -A cell wall is a rigid and tough layer that provides structural support and protection to the plant. The cell wall is exclusively present in plant cells and is absent in animal cells.