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

Question #1

Once inoculated with bacteria, how should agar Petri plates be incubated?

A. right side up

B. more than one of the above is correct

C. upside down

D. sideways

E. none of the above is correct

Question #2

Where should Petri dish lids be placed during the aseptic transfer technique?

A. in your hand, facing down

B. in your hand, facing up

C. on the table, facing up

D. on the table, facing down

E. more than one of the above is correct

F. none of the above is correct

Question #3

How should you sterilize materials that will make contact with your culture media?

A. by using the Bunsen burner and flaming them

B. more than one of the above is correct

C. wash them in the sink

D. you don't need to sterilize materials that will make contact with your experiment

E. wiping it down with a tissue

F. none of the above is correct

Question #4

Which of the following best describes sterile media?

A. media with low pH

B. media free from nutrients

C. media free from living organisms

D. more than one of the above is correct

E. none of the above is correct

Question #5

Which of the following best describes contamination?

A. presence of microorganisms

B. oxygen free

C. presence of carbon dioxide

D. presence of oxygen

E. more than one of the above is correct

F. none of the above is correct