Exam (elaborations) Micro Lab

7/10/25, 2:13 PM Micro Lab Final 1012-91 Al-Dujaili LSUE




Micro Lab Final 1012-91 Al-Dujaili LSUE COMPETE
QUESTIONS AND ACCURATE DETAILED ANSWERS
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bacteria that show no preference, grow equally well in aerobic or anaerobic
conditions are



Choose matching definition



1 facultative 2 obligate



3 microaerophilic 4 microaerophile



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, 7/10/25, 2:13 PM Micro Lab Final 1012-91 Al-Dujaili LSUE



-prevent unfiltered air or dust particles from entering
the tubes
Cotton plugs or screw
caps are used in test tubes -maintain anaerobic conditions
containing sterile media or
pure cultures to... -and prevent culture from spilling


all of the above

If the pH of the medium is adding drops of HCL to lower it or NaOH to raise it
higher than 7.0, you can
adjust to 7.0 by:

The pH indicator in Bromothymol blue
Simmons Citrate agar is
what?

bacteria that show no facultative
preference, grow equally
well in aerobic or
anaerobic conditions are

what protein gives milk its casein (from the milk biology handout)
white color?

-salt


-carbohydrates
beef extract is a source of:
-vitamins


all of the above

bacteria that grow in the heterotrophic
dark and in media
composed mainly of
organic compounds are




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