Which of the following terms best describes the disinfecting of cafeteria plates?


a. pasteurization
b. antisepsis
c. sterilization
d. sanitization

Use the following choices to answer questions 6–8:

a. candidiasis

b. bacterial vaginosis

c. genital herpes

d. lymphogranuloma venereum

e. trichomoniasis

Difficult to treat with chemotherapy

Which of the following chemicals is active against bacterial endospores?

a. copper ions

b. ethylene oxide

c. ethanol

d. triclosan

A company that manufactures an antimicrobial cleaner for kitchen counters claims that its product is effective when used in a 50% water solution. By what means might scientists best verify this statement?

a. disk-diffusion test

b. phenol coefficient

c. filter paper test

d. in-use test

How does a chemostat maintain a constant population size?

Why do warm disinfectant chemicals generally work better than cool ones?

_______________ inhibit the growth of bacteria & ____________________ kill bacteria.

Use the following information to answer questions 6 and 7. The data were obtained from a use-

dilution test comparing four disinfectants against Salmonella Choleraesuis.

G = growth, NG = no growth <IMAGE>

Which disinfectant is the most effective?

Use the following information to answer questions 6 and 7. The data were obtained from a use-

dilution test comparing four disinfectants against Salmonella Choleraesuis.

G = growth, NG = no growth <IMAGE>

Which disinfectant(s) is (are) bactericidal?

a. A,B,C, and D

b. A,C, and D

c. A only

d. B only

e. none of the above