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. sideways

D. upside down

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 up

B. in your hand, facing down

C. more than one of the above is correct

D. on the table, facing down

E. in your hand, facing up

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. 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. more than one of the above is correct

B. media free from nutrients

C. media with low pH

D. media free from living organisms

E. none of the above is correct

Question #5

Which of the following best describes contamination?

A. presence of oxygen

B. presence of microorganisms

C. oxygen free

D. presence of carbon dioxide

E. more than one of the above is correct

F. none of the above is correct