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