Microbiology 9th Edition by Laura Black, Jacquelyn Black

تمرين 8

Peptidoglycan digested from Gram- ________ bacteria retain their cell membrane but lose their cell walls, making them protoplasts, whereas cell wall digests of Gram negative bacteria retain their cell and outer membranes intact, making them ________. Other genera of bacteria normally have cell walls but can lose their ability to form cell walls; such bacte ria are called ________