DENDROLOGY

Detailed explanation-1: -Bacterial cell walls are made of peptidoglycan (also called murein), which is made from polysaccharide chains cross-linked by unusual peptides containing D-amino acids. Bacterial cell walls are different from the cell walls of plants and fungi which are made of cellulose and chitin, respectively.

Detailed explanation-2: -Bacteria and plant cells both have cell walls, although the cell walls are composed of different macromolecules in different cell types. Plants use the protein chitin, while bacteria use peptidoglycan. Bacteria are a certain class of prokaryotes. Animal cells only have a plasma membrane, and do not have cell walls.

Detailed explanation-3: -Both plant cells and fungi cells: Have cell walls. This is basically a thin, tough shell made of sugars that surrounds the cell. Animal cells (like yours) don’t have this cell wall.

Detailed explanation-4: -In bacteria, the cell wall forms a rigid structure of uniform thickness around the cell and is responsible for the characteristic shape of the cell (rod, coccus, or spiral). Inside the cell wall (or rigid peptidoglycan layer) is the plasma (cytoplasmic) membrane; this is usually closely apposed to the wall layer.