Micro chapter 9 review

A cleansing method that mechanically removes microbes and other debris to reduce contamination to safe levels is __________________.

• Asepsis

• sanitization

• Disinfection

• Sterilization

_____ is a halogen used in gaseous and liquid form for large scale disinfection of drinking water and sewage.

• Iodine

• Chlorine

• Bromine

• Fluorine

Alcohols

• denature proteins when in a 50-95% alcohol-water solution.

• disinfect items soaked in alcohol.

• are skin degerming agents.

• at 50% or higher concentrations dissolve cell membrane lipids.

• All of the choices are correct.

Which of the following represents the use of osmotic pressure as a microbial control method?

• Both bleaching a kitchen counter and rinsing a cut with Betadine are correct.

• rinsing of a cut with Betadine

• salting of meat

• bleaching a kitchen counter

Which of the following forms of radiation is in order from the most penetrating to the least penetrating?

• UV, gamma, X ray

• X ray, gamma, UV

• gamma, UV, X rays

• gamma, X rays, UV

The use of a physical or chemical process to destroy vegetative pathogens (but not bacterial endospores) is ________________.

• Sanitization

• Asepsis

• disinfection

• sterilization

Each of the following is the target of antimicrobial agents except

• cellular synthesis.

• cell walls.

• cell membranes.

• cytoplasm.

_____ heat is more rapidly effective and efficient compared to _____ heat.

• Moist, dry

• Moist, high

• High, moist

• Dry, moist

The use of chemical agents directly on exposed body surfaces to destroy or inhibit vegetative pathogens is __________________.

• Sterilization

• antisepsis

• sanization

• Decontamination

The compound that is an organic base containing chlorine and two phenolic rings, and is used increasingly for wound degerming, neonatal washes, hand scrubbing, and prepping surgical skin sites is

• chlorhexidine.

• quarternary ammonium compounds.

• carbolic acid.

• formalin.