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MCB-Control

PBSC-MCB-Control of Growth

QuestionAnswer
What type of evaluation for a disinfectant involves diluting the disinfectant; the higher the rating, the more dilute while still effective Use-Dilution Tests
An example of a halogen made of iodine. Betadine
The suffix used to indicate "to suppress growth". stacis
X-rays and Gamma rays - radiation that breaks DNA bonds. Ionizing Radiation
The term for the absence of pathogens. Asepsis
These are surfactants. Soaps
What is LEAST resistant to chemical biocides? Viruses with envelopes
The test that compares the disinfectant to phenol. Phenol Coefficient Test
What is MOST resistant to chemical biocides? Endospores
The process whereby all forms of life on and in a material are destroyed; includes endospores. Sterilization
Mild heating of liquids which kills some spoilage microbes. Pasteurization
The length of time at a given temperature needed to kill all bacteria in a liquid culture. Thermal Death Time
Which type of cell (gram + or gram -) is MORE resistant to chemical biocides? Gram Negative
The example of a bisphenol. Phisohex
The lowest temperature required to kill a liquid culture of a certain species in 10 minutes. Thermal Death Point
A process to disinfect living tissue. Antisepsis
Non-ionizing radiation; causes thymine dimers. Ultraviolet Radiation
The example of a phenol. Lysol
The suffice used to indicate "to kill". cide
Which type of virus (enveloped or without envelope) is MORE resistant to chemical biocides? Viruses without envelopes
These are used as preservatives. Aldehydes
Microbes which have optimum growth temperatures which correspond to refrigerator temperatures. Psychrotrophs
The process used to reduce microbial populations to a safe public health level. Sanitization
The correct term for phenol. Carbolic Acid
A process to destroy vegetative pathogens on a surface. Disinfection
The evaluation method that involves zones of inhibition around filter paper disks. Disk Diffusion Method
Created by: callen-pbsc
 

 



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