BIOD 171 MODULE 3 TEST BANK EXAM NEWEST VERSION WITH
COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS
\\ACTUAL EXAM WITH VERIFIED ANSWERS ASSURED PASS
GRADED A+ \\BRAND NEW
What is the total 60x objective x 10x ocular = 600x magnification
magnification on (relative to
your eye) of a sample imaged
with a 60x objective and a
10x eyepiece? Show your
math.
True
True or False: Staining is Adherent, flat and unstained cells are almost invisible due to the
often required to image a cell limits on both resolution and contrast. Therefore, cell staining is
that is adherent and flat often required to adequately image
(thin). the sample.
True or False: A cell that is False: Adherent, flat cells are almost invisible due to the limits
adherent, flat (thin), and on both resolution and contrast
unstained is easily identified
using bright field microscopy
Which of the following could B. Protozoa with diameter of 150 μm
be seen D. Skin cell with diameter of 1500 μm
clearly by the unaided eye?
Select all that apply. The unaided eye can, on average, clearly resolve objects > 100
μm
A. Bacteria with diameter of 24
μm
B. Protozoa with diameter of
150 μm
C. Virus with a diameter of 0.2
μm
D. Skin cell with diameter of
1500 μm
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, 5/10/25, 10:10 AM BIOD 171 MODULE 3 EXAM
2. Which of the following A. Bacteria with diameter of 24 μm
could NOT be seen clearly C. Virus with a diameter of 0.2 μm
by the unaided eye? Select
all that apply. The unaided eye can, on average, clearly resolve objects > 100
μm
A. Bacteriawith diameter of 24
μm
B. Protozoa with diameter of
150 μm
C. Virus with a diameter of 0.2
μm
D. Skin cell with diameter of
1500 μm
1F-
1. Label the following
unmarked eyepiec
microscope components e 2D-
(numbered arrows) by neck
matching it with the 3B- fine
components provided adjustment knob
(letters). 4G- objective
5A-
stage
6H-
base
A nanometer is defined as: 10 -9 or one-billionth of a meter
False
True or False: A nanometer is
longer than a micrometer
A nanometer is 1000x smaller than a micrometer
Resolution refers to the distance between two objects
at which the objects can still be seen as separate. Poor
or low resolution means two or more objects may
Resolution and contrast are appear as one.
two critical factors that
influence your ability to see an Contrast on the other hand is the difference in light
object. Explain each. absorbance between two objects. Poor contrast gives a
high background and makes the visualization of
multiple objects difficult. For instance, trying to identify
2 dark colored objects at night (low light = low
contrast) versus the same 2 objects in the middle of
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