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.
dark field microscopy
B.
fluorescent microscopy
C.
phase contrast microsocpy
D.
bright field microscopy
E.
electron microscopy
Question #2
A compound light microscope allows clear visualization of objects no smaller than a:
A.
human cell
B.
typical virus
C.
DNA molecule
D.
small bacterium
E.
four leaf clover
Question #3
Light of ____ wavelength typically will result in ____ resolving power.
A.
shorter, better
B.
shorter, worse
C.
any, poor
D.
longer, better
Question #4
Which of the following is used to visualize live cells?
A.
SEM
B.
TEM
C.
Phase Contrast
D.
All of These
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 have shorter wavelengths than light waves
E.
Electrons do not penetrate the sample.
Question #6
Which of the following microscope types has the best contrast?
A.
phase contrast
B.
dark field miscroscopy
C.
differential interference contrast (DIC)
D.
bright field miscroscopy
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.
scanning electron
B.
fluorescent
C.
phase contrast
D.
darkfield
Question #8
The kind of electron microscope which is used to study internal structure of cells is:
A.
compound microscope
B.
light microscope
C.
scanning electron microscope
D.
transmission electron microscope
Question #9
Phase Contrast microscopy is different than bright field microscopy because:
A.
Uses special lenses to distinguish between solid and liquid phases of the cell
B.
Continuously changes the phase of the incident light from the condenser to improve contrast in the specimen.
C.
Uses special lenses to change the color of light passing through them.
D.
Uses filters in the objective to give contrast to parts of the cell with different thicknesses
Question #10
Which of the following has the BEST resolution?
A.
bright field microscopy
B.
dark field microscopy
C.
differential interference contrast (DIC)
D.
Phase contrast
E.
none of the above
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