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20 terms

Micro Final review

Test 5-7
Which of the following does NOT kill endospores?
Which of these disinfectants does NOT act by disrupting the plasma membrane?
Which of the following CANNOT be used to sterilize a heat-labile solution stored in a plastic container?
The eradication of nonenveloped viruses CANNOT be achieved by
Sterilization can be achieved by using
Which of the following methods causes destruction of DNA?
To sterilize heat-labile solutions, one should use
Membrane filtration
Which of the following is most likely to be bactericidal?
Ionizing radiation
Which of the following is used to control microbial growth in foods?
Organic acids
A classmate is trying to determine how a disinfectant might kill cells. You observed that when he spilled the disinfectant in your reduces litmus milk, the litmus turned blue. You suggest to your classmate that
The disinfectant might oxidize molecules
Which of the following is the MOST useful for disinfecting medical instruments
Which of the following is the BEST advertisement for a disinfectant
Kills pseudomonas
Which of the following is an advantage of the standard plate count
Determines the number of viable cells
Which of the following is an advantage of the direct microscopic count
Requires no incubation time
Which of the following is NOT a direct method to measure microbial growth
Metabolic activity
Which of the following is not an enzyme
Coenzyme A
Which of the following is not true about anaerobic respiration
It involves glycolysis
The enzyme-regulated energy requiring reactions are mostly involved in
Fatty acids are catabolized in
Krebs cycle
Enzymes increase the speed of a chemical reaction
Lowering activation energy