Bio 2010 - Microbiology » Summer 2021 » Chapter 4 Quiz (A)
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Question #1
You want to determine the location of a specific protein in a cell, using a color stain. Which of the following is the BEST type of microscopy to use?
A.
fluorescent microscopy
B.
dark field microscopy
C.
bright field microscopy
D.
phase contrast microsocpy
E.
electron microscopy
Question #2
A compound light microscope allows clear visualization of objects no smaller than a:
A.
small bacterium
B.
four leaf clover
C.
DNA molecule
D.
human cell
E.
typical virus
Question #3
Light of ____ wavelength typically will result in ____ resolving power.
A.
longer, better
B.
shorter, better
C.
shorter, worse
D.
any, poor
Question #4
Which of the following is used to visualize live cells?
A.
TEM
B.
Phase Contrast
C.
All of These
D.
SEM
Question #5
The transmission electron microscope has the greatest resolving power because it uses an electron beam to view the sample instead of a light beam. The electron beam is used because:
A.
Light waves are less visible.
B.
Electrons are less invasive
C.
Electrons have longer wavelengths than light waves
D.
Electrons do not penetrate the sample.
E.
Electrons have shorter wavelengths than light waves
Question #6
Which of the following microscope types has the best contrast?
A.
bright field miscroscopy
B.
differential interference contrast (DIC)
C.
dark field miscroscopy
D.
phase contrast
Question #7
A microscope that exposes specimens to ultraviolet light and forms an image with the light emitted at a different wavelength is called a __________ microscope.
A.
darkfield
B.
scanning electron
C.
fluorescent
D.
phase contrast
Question #8
The kind of electron microscope which is used to study internal structure of cells is:
A.
transmission electron microscope
B.
compound microscope
C.
light microscope
D.
scanning electron microscope
Question #9
Phase Contrast microscopy is different than bright field microscopy because:
A.
Uses special lenses to change the color of light passing through them.
B.
Uses filters in the objective to give contrast to parts of the cell with different thicknesses
C.
Continuously changes the phase of the incident light from the condenser to improve contrast in the specimen.
D.
Uses special lenses to distinguish between solid and liquid phases of the cell
Question #10
Which of the following has the BEST resolution?
A.
bright field microscopy
B.
Phase contrast
C.
differential interference contrast (DIC)
D.
dark field microscopy
E.
none of the above
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