HORTICULTURE

Detailed explanation-1: -The two structures found in plant cells that are absent in animal cells are cell wall and chloroplast.

Detailed explanation-2: -The cell wall is composed of a network of cellulose microfibrils and cross-linking glycans embedded in a highly cross-linked matrix of pectin polysaccharides.

Detailed explanation-3: -Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole, which are not found within animal cells.

Detailed explanation-4: -Cell wall is the characteristic feature of plant cells and not animal cells . This additional layer surrounding the cell membrane is required by plants for protection. Plant cells need protection against variations in temperature, high wind speed etc. They are exposed to these variations because they cannot move.

Detailed explanation-5: -Plant cell needs cell wall whereas animal cell do not because the plants need rigid structure so that they can grow up and out . All cells have cell membranes, and the membranes are flexible. So animal cells can have various shapes, but plant cells only have the shapes of their cell walls.