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. on the table, facing down

B. in your hand, facing down

C. in your hand, facing up

D. on the table, facing up

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. wash them in the sink

C. more than one of the above is correct

D. wiping it down with a tissue

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

F. none of the above is correct

Question #4

Which of the following best describes sterile media?

A. media free from nutrients

B. media free from living organisms

C. media with low pH

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. more than one of the above is correct

B. presence of microorganisms

C. presence of oxygen

D. oxygen free

E. presence of carbon dioxide

F. none of the above is correct