Bio 2010 - Microbiology » Summer 2022 » Aseptic Transfer Technique

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Question #1
What is the goal of aseptic transfer technique?
A.   none of these
B.   to reduce contamination
C.   to prevent contamination
D.   more than one of the above is correct
E.   to allow contamination
Question #2
Why is it important to flame the test tubes before and after transferring bacteria into fresh, sterile culture media?
A.   prevent contaminating the second culture tube
B.   none of these
C.   more than one of the above is correct
D.   clean the tube for use in the future
E.   to seal the plastic lid on the tube
Question #3
Which of the following best describes contamination?
A.   presence of oxygen
B.   oxygen free
C.   none of these
D.   more than one of the above is correct
E.   presence of microorganisms
F.   presence of carbon dioxide
Question #4
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.   get a different flame loop
B.   flame it again just to be sure.
C.   nothing, the last person flamed it
D.   nothing, bacteria cannot grow on the metal loop

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