9/18/25, 6:38 AM Microbiology lab EXAM fully solved & updated 2025-2026(latest version verified for accuracy) Flashcards | Quizlet
Microbiology lab EXAM fully solved & updated
2025-2026(latest version verified for accuracy)
Save
Terms in this set (97)
What is the purpose of To create a well or pockets in the gel where samples
installing the comb? can later be placed.
Why is ethidium bromide Ethidium bromide is needed to see the DNA bands in
added to the hot liquid the gel under UV illumination.
agarose?
Why is it important to pour Such bubbles would interfere with the movement of
slowly and avoid air the sample through the gel, distorting the results.
bubbles?
What happens if you set a The migration of the DNA bands will be slow
low voltage during
electrophoresis?
What would happen if the The sample bands would move to far and leave the
gel was run for too long? bottom of the gel.
What is the goal of To create a magnified image of objects that are too
microscopy? small to be seen with the unaided eye.
Which metric unit is most Micrometer
appropriate for expressing
the size of human skin
cells?
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,9/18/25, 6:38 AM Microbiology lab EXAM fully solved & updated 2025-2026(latest version verified for accuracy) Flashcards | Quizlet
Select the components A light source
used by a bright-field
microscope to view a Glass lenses
specimen.
Multiple select question.
A projector
A light source
Glass lenses
A stream of electrons
Which lens has a High-power objective
magnification of 40×?
Multiple choice question.
High-power objective
Scanning objective
Low-power objective
Oil immersion
Which part of the bright- The ocular lenses
field microscope is a lens
that is located closest to
the eye during use?
Resolution is an image Details
quality factor that involves
being able to see fine
___________, Incorrect
Unavailable, which is
essential for image clarity.
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, 9/18/25, 6:38 AM Microbiology lab EXAM fully solved & updated 2025-2026(latest version verified for accuracy) Flashcards | Quizlet
The lenses of a bright- Magnification
field microscope are
responsible for the _____ of
the object you are
viewing.
What is enhanced when a contrast
stain is used to make a
sample, or parts of a
sample, darker than the
background in a slide?
The total magnification of Multiplying
an image is determined by
______ the magnification
power of the ocular lens
and the magnification
power of the objective
lens used.
A benefit of using the oil Increases resolution
immersion lens is a
reduction in scatter, which
The portion of a slide that Field of veiw
is visible through the
eyepiece is called the
A microscopy sample that Wet mount
is prepared by suspending
it in a fluid that temporarily
keeps it alive and gives it
space to move is called a
Which lens has a Low-power objective
magnification of 10×?
Which part of the bright- The condenser
field microscope focuses
light on the specimen?
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Microbiology lab EXAM fully solved & updated
2025-2026(latest version verified for accuracy)
Save
Terms in this set (97)
What is the purpose of To create a well or pockets in the gel where samples
installing the comb? can later be placed.
Why is ethidium bromide Ethidium bromide is needed to see the DNA bands in
added to the hot liquid the gel under UV illumination.
agarose?
Why is it important to pour Such bubbles would interfere with the movement of
slowly and avoid air the sample through the gel, distorting the results.
bubbles?
What happens if you set a The migration of the DNA bands will be slow
low voltage during
electrophoresis?
What would happen if the The sample bands would move to far and leave the
gel was run for too long? bottom of the gel.
What is the goal of To create a magnified image of objects that are too
microscopy? small to be seen with the unaided eye.
Which metric unit is most Micrometer
appropriate for expressing
the size of human skin
cells?
https://quizlet.com/1078488450/microbiology-lab-exam-fully-solved-updated-2025-2026latest-version-verified-for-accuracy-flash-cards/ 1/16
,9/18/25, 6:38 AM Microbiology lab EXAM fully solved & updated 2025-2026(latest version verified for accuracy) Flashcards | Quizlet
Select the components A light source
used by a bright-field
microscope to view a Glass lenses
specimen.
Multiple select question.
A projector
A light source
Glass lenses
A stream of electrons
Which lens has a High-power objective
magnification of 40×?
Multiple choice question.
High-power objective
Scanning objective
Low-power objective
Oil immersion
Which part of the bright- The ocular lenses
field microscope is a lens
that is located closest to
the eye during use?
Resolution is an image Details
quality factor that involves
being able to see fine
___________, Incorrect
Unavailable, which is
essential for image clarity.
https://quizlet.com/1078488450/microbiology-lab-exam-fully-solved-updated-2025-2026latest-version-verified-for-accuracy-flash-cards/ 2/16
, 9/18/25, 6:38 AM Microbiology lab EXAM fully solved & updated 2025-2026(latest version verified for accuracy) Flashcards | Quizlet
The lenses of a bright- Magnification
field microscope are
responsible for the _____ of
the object you are
viewing.
What is enhanced when a contrast
stain is used to make a
sample, or parts of a
sample, darker than the
background in a slide?
The total magnification of Multiplying
an image is determined by
______ the magnification
power of the ocular lens
and the magnification
power of the objective
lens used.
A benefit of using the oil Increases resolution
immersion lens is a
reduction in scatter, which
The portion of a slide that Field of veiw
is visible through the
eyepiece is called the
A microscopy sample that Wet mount
is prepared by suspending
it in a fluid that temporarily
keeps it alive and gives it
space to move is called a
Which lens has a Low-power objective
magnification of 10×?
Which part of the bright- The condenser
field microscope focuses
light on the specimen?
https://quizlet.com/1078488450/microbiology-lab-exam-fully-solved-updated-2025-2026latest-version-verified-for-accuracy-flash-cards/ 3/16
