Compare and contrast the cell walls of gram-positive bacteria, gram-negative bacteria, acid-fast bacteria, archaea, and mycoplasmas
a. Gram-positive: thick peptidoglycan, gram-negative: thin peptidoglycan layer
b. Gram-positive: outer membrane, gram-negative: no outer membrane
c. Gram-positive: no cell wall, mycoplasmas: rigid cell wall
d. Gram-positive: cellulose cell wall, archaea: peptidoglycan cell wall