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

Question #1

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

A. sideways

B. upside down

C. right side up

D. more than one of the above is correct

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. more than one of the above is correct

C. in your hand, facing up

D. on the table, facing up

E. on the table, facing down

F. none of the above is correct

Question #3

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

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

B. more than one of the above is correct

C. wiping it down with a tissue

D. wash them in the sink

E. by using the Bunsen burner and flaming them

F. none of the above is correct

Question #4

Which of the following best describes sterile media?

A. more than one of the above is correct

B. media with low pH

C. media free from living organisms

D. media free from nutrients

E. none of the above is correct

Question #5

Which of the following best describes contamination?

A. presence of oxygen

B. oxygen free

C. presence of carbon dioxide

D. presence of microorganisms

E. more than one of the above is correct

F. none of the above is correct