| A | B |
|---|
| persister cells | Persisters are dormant variants of regular cells that form stochastically in microbial populations and are highly tolerant to antibiotics. |
| Gases and Aerosols | Ethylene oxide, propylene oxide Strong alkylating agents High level Sterilize and disinfect plastics and prepackaged devices, foods |
| Detergents and Soaps | act as surfactants that alter membrane permeability of some bacteria and fungi |
| detergents and soap-germacidal level | Very low level |
| soaps containing triclosan (antimicrobial) in concentration sold over the counter doesn't really work better than reg detergent. What's the problem with using these soaps? | microbes are building a resistance to the antimicrobial agents in these soaps-making them resistant to higher strengths- |
| heavy metals | Solutions of silver and mercury kill vegetative cells in low concentrations by inactivating proteins |
| examples of heavy metals | Merthiolate, silver nitrate, silvadene |
| Acids and Alkalis | alter pH to prevent spore germination and bacterial and fungal growth |
| Which of the following kills by producing oxygen radicals? Alcohol Hydrogen Peroxide Aldehydes Gases Soaps | hydrogen peroxide |
