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MCB 3020L Quizzes Exam Questions with Latest Update
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  • MCB 3020
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  • 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...

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  • October 9, 2024
  • 11
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • mcb 3020l quizzes exam questions with latest updat
  • which of these can be viewed by light microscopy

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MCB 3020L Quizzes Exam Questions
with Latest Update
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: 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:

Mitochondrion
Cell membrane
Cell wall
Ribosomes - Answer-MITOCHONDRION

Select the following methods of indirect cell count

Optical density measurement
Flow cytometer
Plate count
hemocytometer - Answer-Flow cytometer

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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