Prince George Community College » Biology » Bio 2010 - Microbiology » Fall 2021

Question #1

What term describes the universal presence of bacteria in the environment?

A. Ubiquitous

B. Bacterial

C. Phenomena

Question #2

The total magnification of a lenscombination of a 40X objective and a 10X ocular is

A. 400x

B. 40x

C. 4000x

Question #3

If an average of 150 CFU was obtained from two plates, each having 0.4ml of specimen plated, what was the CFU/L of the original specimen?

A. 375000 CFU/L

B. 300000 CFU/L

C. 600000 CFU/L

Question #4

What is the pouring temperature of agar?

A. between 40-50 degrees

B. between 50-60 degrees

C. between 45-55 degrees

Question #5

If an average of 172 CFU was obtained from two plates, each having 0.4ml of specimen plated, what was the CFU/ml of the original specimen?

A. 540 CFU/mL

B. 430 CFU/mL

C. 344 CFU/mL