The cell walls of Bacteria contain

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BlackTom AI · Accepted Answer

The question asks about the composition of bacterial cell walls and provides four options to evaluate.
Option 1: Phospholipids. While phospholipids are major components of the cell membrane, they are not the primary building material of the bacterial cell wall. The cell wall’s structural rigidity is provided by other molecules, with membranes themselves being a lipid bilayer containing phospholipids.
Option 2: Peptidoglycan. This is the hallmark component of most bacterial cell walls, forming a strong, mesh-like lattice that provides shape and mechanical strength. It consists of sugar chains cross-linked by peptides, which is specific to bacteria.
Option 3: Starch. Starch is a storage polymer of glucose found in plants and some algae, not a structural component of bacterial cell walls. It has no role in bacterial wall architecture.
Option 4: Cellulose. While cellulose is a major plant cell wall polysaccharide, bacteria do not rely on cellulose for their wall structure. Some bacteria can interact with cellulose in environmental contexts, but it is not part of the bacterial cell wall.
In summary, among the options, peptidoglycan is the molecule that characteristically constitutes the bacterial cell wall, whereas the others are associated with membranes or plant cell walls and are not the primary wall constituent in bacteria.

The cell walls of Bacteria contain

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