What is the major difference between the cell walls of gram-positive and gram-negative bacteria?
A. The peptidoglycan layer in gram-positive bacteria is substantially thicker.
B. The cell wall of gram-positive bacteria contains mycolic acids.
C. Gram-positive bacteria contain a cytoplasmic membrane.
D. Gram-positive bacteria may have a polysaccharide capsule as a covering.
E. Gram-negative bacterial membranes contain ergosterol
Answer: A
Bacteriology
- What test allows identification of a capsule in bacteria?
- What are the two functions of a bacterial capsule?
- What are the two notable examples of bacterial capsules made from a macromolecule other than polysaccharides?
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