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

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