Bio 2010 - Microbiology » Summer 2023 » Aseptic Transfer Technique
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Question #1
You and your partner were talking during your aseptic transfer activity. You cannot remember if you flamed your flame loop before you opened your first test tube. What should you do in order to avoid contamination?
A.
nothing, bacteria cannot grow on the metal loop
B.
nothing, the last person flamed it
C.
get a different flame loop
D.
flame it again just to be sure.
Question #2
Once inoculated with bacteria, how should agar Petri plates be incubated?
A.
upside down
B.
none of these
C.
right side up
D.
sideways
Question #3
What is the goal of aseptic transfer technique?
A.
to allow contamination
B.
to prevent contamination
C.
none of these
D.
to reduce contamination
Question #4
Where should Petri dish lids be placed during the aseptic transfer technique?
A.
in your hand, facing up
B.
in your hand, facing down
C.
on the table, facing down
D.
on the table, facing up
Question #5
Which of the following best describes contamination?
A.
oxygen free
B.
presence of carbon dioxide
C.
presence of microorganisms
D.
presence of oxygen
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