BIOL 3444 EXAM 1 questions with answers
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Which term is used to refer to a wave's rate of vibration? -
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CORRECT ANSWERS ✔✔B. frequency |\ |\ |\
On the figure, which letter represents a refracted ray of light? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔C (BUT D on test) |\ |\ |\ |\ |\ |\
On the electromagnetic spectrum, which type of wave has the
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
shortest wavelength? - CORRECT ANSWERS ✔✔A. cosmic ray
|\ |\ |\ |\ |\ |\ |\
Dyes are often used during microscopy to increase which of the
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
following? - CORRECT ANSWERS ✔✔A. contrast
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Which of the following was the first to use the term "cells"? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔A. Robert Hooke |\ |\ |\ |\
Which of the following is the typical magnification of an object
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
viewed using a 10× ocular lens and a 100× objective lens on a
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
brightfield microscope? - CORRECT ANSWERS ✔✔D. 1000×
|\ |\ |\ |\ |\ |\
Most modern microscopes have two eyepieces, meaning that
|\ |\ |\ |\ |\ |\ |\ |\
they are which of the following? - CORRECT ANSWERS ✔✔A.
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
binocular
,An annular stop is used for which type of microscopy? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔D. phase contrast
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Which of the following is the specific name for a stain that colors
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
the background but not the specimen? - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\
✔✔D. negative stain |\ |\
Which type of microscopy would work best for viewing internal
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
cell structures? - CORRECT ANSWERS ✔✔D. transmission electron
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microscopy
|\
The Gram-staining procedure is best described as which of the
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
following? - CORRECT ANSWERS ✔✔B. differential staining
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When there is a substantial difference in refractive index between
|\ |\ |\ |\ |\ |\ |\ |\ |\
two materials, which of the following describes what will happen
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
to light passing from one material to the other? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔B. It will undergo a large amount of refraction.
|\ |\ |\ |\ |\ |\ |\ |\ |\
In microscopy, the focal length refers to which of the following? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔D. the distance to the image point (at
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
which all light entering a lens is parallel)
|\ |\ |\ |\ |\ |\ |\
Which of the following are pigments used in microscopy to
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
absorb and reflect light? - CORRECT ANSWERS ✔✔B.
|\ |\ |\ |\ |\ |\ |\ |\
chromophores
, Negative staining is the standard approach used to visualize
|\ |\ |\ |\ |\ |\ |\ |\ |\
which structure(s)? - CORRECT ANSWERS ✔✔A. capsules
|\ |\ |\ |\ |\ |\
Which is a standard mordant used in flagella staining? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔D. tannic acid
|\ |\ |\ |\
Which of the following pairs are common acid-fast staining
|\ |\ |\ |\ |\ |\ |\ |\ |\
techniques? - CORRECT ANSWERS ✔✔C. Ziehl-Neelsen and |\ |\ |\ |\ |\ |\ |\
Kinyoun
Which is the primary stain used in the Ziehl-Neelsen technique? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔B. carbolfuchsin
|\ |\ |\ |\
Which is the correct order of steps in Gram staining? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔B. crystal violet stain, Gram's iodine mordant,
|\ |\ |\ |\ |\ |\ |\ |\
ethanol decolorization, safranin counterstain
|\ |\ |\
It is important to fix bacterial smears on a slide for which of the
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
following reasons? - CORRECT ANSWERS ✔✔A. to attach them to
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
the slide |\
Which of the following is not commonly used for chemical
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
fixation? - CORRECT ANSWERS ✔✔D. iodine
|\ |\ |\ |\ |\
Which of the following is not involved in preparing a bacterial
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
slide for Gram staining? - CORRECT ANSWERS ✔✔D. preparing a
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
wet mount |\
|\ |\ |\ |\ |\ |\
Which term is used to refer to a wave's rate of vibration? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔B. frequency |\ |\ |\
On the figure, which letter represents a refracted ray of light? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔C (BUT D on test) |\ |\ |\ |\ |\ |\
On the electromagnetic spectrum, which type of wave has the
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
shortest wavelength? - CORRECT ANSWERS ✔✔A. cosmic ray
|\ |\ |\ |\ |\ |\ |\
Dyes are often used during microscopy to increase which of the
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
following? - CORRECT ANSWERS ✔✔A. contrast
|\ |\ |\ |\ |\
Which of the following was the first to use the term "cells"? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔A. Robert Hooke |\ |\ |\ |\
Which of the following is the typical magnification of an object
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
viewed using a 10× ocular lens and a 100× objective lens on a
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
brightfield microscope? - CORRECT ANSWERS ✔✔D. 1000×
|\ |\ |\ |\ |\ |\
Most modern microscopes have two eyepieces, meaning that
|\ |\ |\ |\ |\ |\ |\ |\
they are which of the following? - CORRECT ANSWERS ✔✔A.
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
binocular
,An annular stop is used for which type of microscopy? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔D. phase contrast
|\ |\ |\ |\
Which of the following is the specific name for a stain that colors
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
the background but not the specimen? - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\
✔✔D. negative stain |\ |\
Which type of microscopy would work best for viewing internal
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
cell structures? - CORRECT ANSWERS ✔✔D. transmission electron
|\ |\ |\ |\ |\ |\ |\
microscopy
|\
The Gram-staining procedure is best described as which of the
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
following? - CORRECT ANSWERS ✔✔B. differential staining
|\ |\ |\ |\ |\ |\
When there is a substantial difference in refractive index between
|\ |\ |\ |\ |\ |\ |\ |\ |\
two materials, which of the following describes what will happen
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
to light passing from one material to the other? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔B. It will undergo a large amount of refraction.
|\ |\ |\ |\ |\ |\ |\ |\ |\
In microscopy, the focal length refers to which of the following? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔D. the distance to the image point (at
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
which all light entering a lens is parallel)
|\ |\ |\ |\ |\ |\ |\
Which of the following are pigments used in microscopy to
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
absorb and reflect light? - CORRECT ANSWERS ✔✔B.
|\ |\ |\ |\ |\ |\ |\ |\
chromophores
, Negative staining is the standard approach used to visualize
|\ |\ |\ |\ |\ |\ |\ |\ |\
which structure(s)? - CORRECT ANSWERS ✔✔A. capsules
|\ |\ |\ |\ |\ |\
Which is a standard mordant used in flagella staining? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔D. tannic acid
|\ |\ |\ |\
Which of the following pairs are common acid-fast staining
|\ |\ |\ |\ |\ |\ |\ |\ |\
techniques? - CORRECT ANSWERS ✔✔C. Ziehl-Neelsen and |\ |\ |\ |\ |\ |\ |\
Kinyoun
Which is the primary stain used in the Ziehl-Neelsen technique? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔B. carbolfuchsin
|\ |\ |\ |\
Which is the correct order of steps in Gram staining? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔B. crystal violet stain, Gram's iodine mordant,
|\ |\ |\ |\ |\ |\ |\ |\
ethanol decolorization, safranin counterstain
|\ |\ |\
It is important to fix bacterial smears on a slide for which of the
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
following reasons? - CORRECT ANSWERS ✔✔A. to attach them to
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
the slide |\
Which of the following is not commonly used for chemical
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
fixation? - CORRECT ANSWERS ✔✔D. iodine
|\ |\ |\ |\ |\
Which of the following is not involved in preparing a bacterial
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
slide for Gram staining? - CORRECT ANSWERS ✔✔D. preparing a
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
wet mount |\
