Foundation Vocabulary
Physical Methods of Control
Chemical Methods of Control
Types of Disinfectants
Types of Disinfectants cont.
100

What is the difference between a Cidal Agent and a Static Agent?

What is 'a Static agent causes inhibition of growth (reversible damage) and a Cidal agent causes prompt death (irreversible damage)'?

100

What is the most widely used technique for killing or inhibiting microbes & what are the 3 types?

What is 'temperature: Moist Heat, Dry Heat, & Low Temperature'?
100

What are the 4 Evaluation tests used to test the efficiency of Chemical Methods of Control?

What is ‘Initial Testing, Phenol Coefficient Test, Use Dilution Test, & Filter Paper Disk Method’?

100

_______ decrease the surface tension of a liquid & emulsify oils.

What is ‘Surface-active agents (Surfactants)’?

100

What compound’s structure & applications resemble hexachlorophene, is used in isopropyl alcohol, & is known as HIBICLENS?

What is ‘Chlorohexidine’?

200

What is the difference between Sterilization and Disinfection?

What is 'Sterilization removes or destroys all life forms, Disinfection kills pathogenic microbes on inanimate objects'?

200

What is the time, temperature, and pressure of the autoclave?

What is '121 degrees celsius, 15-20 mins, 15 pounds of pressure per square inch'?

200

Testing disinfectants or sterilizers using pure cultures to define their range of usefulness is _________.

What is ‘Initial Testing’?

200

A phenolic is a _______ derivative. What makes a phenolic a derivative?

What is ‘phenol; the chemical + an organic compound’?

200

________ is a common household antiseptic used for deep anaerobic wounds. ________ is its stabilized form used for contact lenses.

What is ‘Hydrogen Peroxide; Super D Hydrogen Peroxide’?

300

What is the difference between Sanitization and Decontamination?

What is 'Sanitization kills or removes 99.9% of growing bacteria, Decontamination removes living pathogens and their toxic products'?

300

What are the three techniques that use dry heat?

What is 'Direct flaming, Hot air (hot oven) sterilization, & Incineration'?

300

Which Evaluation test is often used in teaching laboratories to evaluate the efficiency of a chemical agent?

What is ‘Filter Paper Disk Method’?

300

An ALDEHYDE is among the most effective _________. ________ and _______ are both common aldehydes.

What is ‘antimicrobials; Formaldehyde & Glutaraldehyde’?

300

_____ is used as a gas or in combination with other chemicals disinfecting water supplies. ______ is household bleach.

What is ‘Chlorine; sodium hypochlorite’?

400

What is the difference between Antisepsis and Asepsis?

What is 'Antisepsis: the inhibition of growth of microorganisms on living tissues

Asepsis: the process of preventing putrefaction or contamination'? 

400

What kills by denaturation/coagulation of cellular proteins/enzymes or altering the physical state of lipids?

What is 'Moist Heat'?
400

A Use Dilution Test is _________.

What is ‘a method that determines how much a chemical can be diluted and still remain effective'?

400

What 4 heavy metals/compounds are used most often as disinfectants?

What is ‘Silver, Mercury, Copper Sulfate, & Zinc Oxide’?

400

Iodine is a _______ on the periodic table. What is it effective against and why?

What is ‘Halogen; effective against all kinds of bacteria, many endospores, fungi, & some viruses; combines with the amino acid tyrosine in enzymes’?

500

How does the Microbial load (bioburden) affect the Decimal Reduction Time (DRT)? 

What is 'The larger the microbial load (bioburden) the larger the Decimal Reduction Time'?

500

What method cannot be relied upon for sterilization & what are the three techniques?

What is 'Low temperature: Refrigeration, Freezing, & Lyophilization'?
500

The Phenol Coefficient Test is _______?

What is ‘a measure of a chemical compound’s effectiveness as a disinfectant as compared with phenol’?

500

What are the 3 ways that chemicals can be classified according to their method of action on bacterial cells?

  • What is ‘1.Chemicals can alter membrane permeability 2.Chemicals that denature or coagulate cellular proteins and enzymes 3. Chemicals that affect nucleic acids’?

500

*DISCUSSION Q.* What are the 7 factors affecting the Physical and Chemical control of microorganisms?  

What is '1.Time, 2.Temperature, 3.Concentration, 4.Medium, 5.pH, 6.Type of organism, 7.Contact'?

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