Question

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 1

Question 15:-

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.

Question 16:-

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.