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BIOD 171 Module 3 Quiz with Verified Answers |Latest 2024/2025
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What is different about phase contrast microscopy compared to brightfield? You are able to visualize things that would otherwise be invisible; cells are highly distinguishable True or False: A cell that is adherent, flat (thin), and unstained is easily identified using bright field microscopy ...

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  • September 14, 2024
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  • 2024/2025
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  • biod 171 module 3
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  • biod 171 module 3 quiz with verified answers

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BIOD 171 Module 3 Quiz with Verified
Answers.

What is different about phase contrast microscopy compared to
_;- _;- _;- _;- _;- _;- _;- _;- _;-



brightfield? You are able to visualize things that would
_;-_;- _;- _;- _;- _;- _;- _;- _;- _;- _;-



otherwise be invisible; cells are highly distinguishable
_;- _;- _;- _;- _;- _;-




True or False: A cell that is adherent, flat (thin), and unstained is
_;- _;- _;- _;- _;- _;- _;- _;- _;- _;- _;- _;- _;-



easily identified using bright field microscopy
_;- False: _;- _;- _;- _;- _;-_;- _;- _;-



Adherent, flat cells are almost invisible due to the limits on both
_;- _;- _;- _;- _;- _;- _;- _;- _;- _;- _;- _;-



resolution and contrast _;- _;-




True or False: The distinguishing characteristic of Gram-Negative
_;- _;- _;- _;- _;- _;- _;- _;-



bacteria is the presence of LPS in the outer membrane.
_;- _;- True
_;- _;- _;- _;- _;- _;- _;- _;-_;- _;-




True or False: Following the decolorization step of the Gram
_;- _;- _;- _;- _;- _;- _;- _;- _;- _;-



stain, Gram-Negative bacteria will appear colorless.
_;- True _;- _;- _;- _;- _;-_;- _;-




True or False: If you wish to study the motiity of an organism
_;- _;- _;- _;- _;- _;- _;- _;- _;- _;- _;- _;- _;-



you cannot heat fix, but you can chemically fix the specimen
_;- _;- _;- _;- _;- _;- _;- _;- _;- _;- _;-_;-



False
_;-

, What type of microscopy uses lasers?
_;- _;- _;- _;- _;- _;-_;- _;- Confocal


Does electron microscopy use live or dead samples?
_;- _;- _;- _;- _;- _;- _;- _;-_;- _;- Dead


Does electron microscopy use fixation?
_;- _;- _;- _;- _;-_;- _;- Yes


What type of microscopy are samples coated with gold or
_;- _;- _;- _;- _;- _;- _;- _;- _;- _;-



platinum? Electron- SEM _;-_;- _;- _;-




Contrast _;-_;- _;- difference in light absorbance between 2 areas
_;- _;- _;- _;- _;- _;-




Dark field microscopy light
_;- _;- _;- _;-_;- _;- reflects light off of specimen at_;- _;- _;- _;- _;- _;-



an angle
_;-




Can you see intracellular structures with a dark field
_;- _;- _;- _;- _;- _;- _;- _;- _;-



microscope? No _;-_;- _;-




What microscope can capture in 3-D?
_;- _;- _;- _;- _;- _;-_;- _;- Confocal

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