Question

29
microbial control methods that kill _______ are able to sterilize.
multiple choice
○ viruses
○ the tuberculosis bacteria
○ endospores
○ cysts

Explanation:

Sterilization requires killing all microbial life, including the most resistant forms. Endospores are extremely resistant structures produced by some bacteria (like Bacillus and Clostridium). Methods that can kill endospores are considered sterilizing because if endospores are killed, all other less - resistant microbes (like viruses, tuberculosis bacteria, and cysts) will also be killed. Viruses are not as resistant as endospores, tuberculosis bacteria (Mycobacterium tuberculosis) have a waxy cell wall but are less resistant than endospores, and cysts (of protozoa) are also less resistant than endospores.

Answer:

C. endospores