Which of the following is bacteriostatic?

A. heating in an oven at 171°C for an hour
B. freezing below 0°C
C. filtration
D. autoclaving
E. flash pasteurization


Answer: B

Biology & Microbiology

You might also like to view...

Which of the following characteristics is not shared by typical birds and mammals?

a. four-chambered heart b. milk production c. four limbs d. endothermy e. insulating skin structures

Biology & Microbiology

Which of the following would not be secreted across the tubule?

a. ammonium ions b. hydrogen ions c. creatinine d. carbon dioxide e. penicillin

Biology & Microbiology

Each year, plants and algae remove approximately ________ of the CO2 in the atmosphere.

A. half B. 1/7th C. 1/50th D. 100%

Biology & Microbiology

Scientists have identified and named

a. all living species b. all living and extinct species c. all extinct species d. a fraction of all species

Biology & Microbiology