Question

Cell walls of bacteria are composed of a large, interconnected molecule of ____. This molecule is composed of alternating sugar molecules called N-acetylglucosamine (NAG) and N-acetylmuramic acid (NAM). What is the missing term?

A) Polysaccharide
B) Protein
C) Lipid
D) DNA"

Answer 1

Bacterial cell walls are composed of peptidoglycan, a polysaccharide that provides strength and shape to the cell.

Step-by-step explanation:

The major component of bacterial cell walls is called peptidoglycan, composed of long chains of alternating molecules of N-acetylglucosamine (NAG) and N-acetylmuramic acid (NAM). Peptidoglycan is a polysaccharide that provides the cell wall with tensile strength in two dimensions. It is unique to bacteria and is responsible for giving the cell its shape and protecting it.