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 prevent contamination
C.   to allow contamination
D.   none of these
E.   to reduce 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.   clean the tube for use in the future
C.   to seal the plastic lid on the tube
D.   none of these
E.   more than one of the above is correct
Question #3
Which of the following best describes contamination?
A.   presence of microorganisms
B.   presence of oxygen
C.   none of these
D.   more than one of the above is correct
E.   oxygen free
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.   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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