15. A(n) ____________ would be used to reduce bacteria on a countertop, whereas a(n) __________ would be applied to the skin prior to a surgical incision.
A. surfactant :: antiseptic
B. disinfectant :: surfactant
C. antiseptic :: sterilant
D. disinfectant :: antiseptic
E. antiseptic :: disinfectant
16. High temperatures _______ and low temperatures _____________.
A. sterilize :: disinfect
B. denature proteins :: cause pyrimidine dimers
C. kill cells :: inhibit cell growth
D. denature proteins :: burst cells
E. speed up metabolism :: slow down metabolism
Answer:- The correct answer is d) Disinfectant :: antiseptic.
Disinfectant is used to reduce bacteria in non- living objects whereas antiseptics with slight lower concentrations than disinfectant are used to promote sterilisation before surgical incision in the skin.
Answer:- The correct answer is d) Denature proteins:: burst cells.
Explanation:- High temperatures lead to denaturing of proteins whereas freezing low temperature results in expansion of water and also formation of ice crystals and hence bursting of cells.
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