Which of the following statements accurately describes specific bacterial cell walls? View Available Hint(s) Which of the following statements accurately describes specific bacterial cell walls? Gram-negative bacterial cell walls contain teichoic acids, whereas the cell walls of gram-positive bacteria do not. The cell walls of gram-negative bacteria contain many more layers of peptidoglycan than those of gram-positive bacteria. In gram-negative bacteria, the thin layer of peptidoglycan is surrounded by an outer membrane made of phospholipids, lipopolysaccharides, and proteins. In bacteria with acid-fast cell walls, the carboxylic acid in the walls forms a layer outside a thin layer of hydrophilic polypeptides.