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

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