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MCB-Control
PBSC-MCB-Control of Growth
Question | Answer |
---|---|
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 |