Microbiology 020 - General Microbiology » Spring 2022 » Review Quiz 5

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Question #1
Pasteurization uses ___________ to increase the shelf life of some food/drink.
A.   short-wave radiation
B.   disinfectants
C.   filters
D.   mild heat
Question #2
Which one does not have bacteriostatic effect on microbes?
A.   microbicide use
B.   dehydration
C.   applying high concentration of salt
D.   refrigeration
Question #3
________ destroys microbial pathogens by denaturing proteins.
A.   UV light
B.   Formaldehyde
C.   Microwave
D.   Heat
Question #4
A/n ______________ is an antibacterial chemical naturally produced by microbes like fungi and bacteria.
A.   antiseptic
B.   antibiotic
C.   disinfectant
D.   surfactant
Question #5
Which control method is used when you use wet wipes to clean the doorknob?
A.   sterilization
B.   degerming
C.   disinfection
D.   chemotherapy
Question #6
______________act by disrupting cell membranes & mechanically removing microbes.
A.   Halogens
B.   Alcohols
C.   Organic acids
D.   Surfactants & detergents
Question #7
All of these chemicals control microbial growth by being strong oxidizing agents except ___________________.
A.   chlorine
B.   formaldehyde
C.   iodine
D.   hydrogen peroxide
Question #8
An antiseptic can kill the spores of spore-forming bacteria.
A.   True
B.   False
Question #9
Which antibiotic/s block/s bacterial cell wall synthesis?
A.   sulfa drugs
B.   penicillin & vancomycin
C.   streptomycin & tetracyclin
D.   polymyxin B
Question #10
Which is not a strategy to slow down evolution of antibiotic resistance?
A.   use the same antibiotic every time you get ill
B.   only use against bacterial pathogens
C.   use vaccines
D.   complete (finish) the dosage

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