Peptidoglycan forms sheets that stiffen the cell walls of bacteria. How is the formation of sheets possible?
A) The glycosidic linkages between monosaccharides in peptidoglycan are extraordinarily strong.
B) The polysaccharides in peptidoglycan are highly branched and form a network.
C) The polysaccharides in peptidoglycan form helical structures, as in cellulose.
D) Individual strands are joined by peptide bonds-a type of covalent bond.

Question

Quizplus · Accepted Answer

Individual strands of peptidoglycan are cross-linked by peptide bonds, which are a type of covalent bond. This cross-linking provides the structural strength and rigidity to the bacterial cell wall by forming a mesh-like layer.

Peptidoglycan Forms Sheets That Stiffen the Cell Walls of Bacteria