MCB 3020L Quizzes Exam Questions with Latest Update
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Course
MCB 3020
Institution
MCB 3020
Which of these can be viewed by Light Microscopy?
Hepatitis B virus
Poxvirus
Coccus-shaped bacteria
Amino acid - Answer-coccus shaped bacteria
On a P200, what volume (in μL) does a "0500" indicator read as?
50.0
0.50
0.050
500.0 - Answer-50.0
True or False: Tradigra...
On a P200, what volume (in μL) does a "0500" indicator read as?
50.0
0.50
0.050
500.0 - Answer-50.0
True or False: Tradigrades or "water bears" are extremophiles that can survive in outer
space - Answer-true
TSA agar is
selective
differential
both
none of the above - Answer-both
When using the gram staining technique, the correct order of steps is:
A. Primary stain, mordant, decolorizer, counterstain
A. Mordant, decolorizer, primary stain, counterstain
A. Primary stain, counterstain, mordant, decolorizer
A. Primary stain, decolorizer, mordant, counterstain - Answer-A. Primary stain,
mordant, decolorizer, counterstain
In order to withdraw liquid from a source, you must insert the pipette tip into the liquid
and press the operating button of the pipette to the ___ stop before slowly releasing it. -
Answer-1st
What is the total magnification when the 40x lens is used
400x
40x
4x - Answer-400x
, True or false a paramecium is a Eukaryote - Answer-true
If there are more than 300 colonies in a petrifilm, you would record the results as: -
Answer-TNTC
In a P200, the smallest volume it can pipette is
20 uL
10 uL
2 uL
1 uL - Answer-20
All of these are characteristics of a prokaryotic cell EXCEPT:
During the Kholering process, you adjust the condenser height to get crisp edges in the
shape of a(n) ______.
Decagon
Hexagon
Circle
Octagon - Answer-octagon
Many _____ are responsible for cleaning up our wastewater in the water reclamation
facility (activated sludge).
Plantae
Bacteria
Fungi
Protozoa
None of the above - Answer-protozoa
When doing a gram stain, bacteria with thin peptidoglycan walls will stain:
Colorless
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