11. Controlling Microbial Growth

Which type of gas chemical agent requires a long treatment time in a controlled environment?

Place the following surfactants in order from the most effective to the least effective antimicrobial activity:
1-Soap; 2-detergent; 3-Quats.

Which of the following substances is a non-biodegradable household surface-active agent?

___________ is the chemical used to disinfect swimming pools.

A large hospital washes burn patients in a stainless steel tub. After each patient, the tub is cleaned with a quat. It was noticed that 14 of 20 burn patients acquired Pseudomonas infections after being bathed. Provide an explanation for this high rate of infection.

What bacteria have porins, are resistant to bisphenols, and survive and may grow in quats?

List and explain five criteria used to identify an effective antimicrobial agent.

Compare the method of action of the following pairs:

a. penicillin and echinocandin

b. imidazole and polymyxin B

Which of the following substances would most effectively inhibit anaerobes?

a. phenol

b. silver

c. ethanol

d. hydrogen peroxide

Compare and contrast the action of alcohols, halogens, and oxidizing agents in controlling microbial growth.