BIOD 171 EXAM 3 STUDY WITH 100% CORRECT ANSWERS 2026

BIOD 171 EXAM 3 STUDY WITH 100% CORRECT
ANSWERS 2026


True or False: A nanometer (10-9) is longer than a micrometer (10-6). correct
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answer False; A nanometer is 1,000 times smaller than a micrometer.
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Resolution and contrast are two critical factors that influence your ability to see
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an object. Explain each. correct answer Resolution is the difference in
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distance between two objects that appear as two separate objects.
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Contrast is the difference in light absorption by an object.
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Assuming a constant (non-adjustable) light source power, identify the part of
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the microscope you would adjust to limit the amount of light entering the
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microscope. correct answer Iris diaphragm
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What is the total magnification (relative to your eye) of a sample imaged with a
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60x objective and a 10x eyepiece? Show your math. correct answer 60 x 10 =
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600x magnification
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True or False: Staining is often required to image a cell that is adherent and flat
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(thin). correct answer True
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Which of the following could NOT be seen clearly by the unaided eye? Select all
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that apply. correct answer Bacteria with diameter of 24 μm
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