Bio 2010 - Microbiology » Summer 2022 » Aseptic Transfer Technique

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

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