a. Archaea - 0-1 layer of peptidoglycan subunits
b. Gram Negative - 1-3 layers of peptidoglycan subunits
c. Gram Positive - 20-80 layers of peptidoglycan subunits
d. Mycobacterium species, or other acid-fast bacterium - 60-90 layers of peptidoglycan subunits
e. Mycoplasma species - 0 layers of peptidoglycan subunits
