BIOD 171 MODULE 3 EXAM QUESTIONS WITH CORRECT ANSWERS GRADED A+

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BIOD 171 MODULE 3 EXAM QUESTIONS WITH CORRECT ANSWERS GRADED A+

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2024/2025

Institution BIOD 171

Course BIOD 171

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What type of cell does the Giemsa stain? - White blood cells What type of samples are acid-fast stains often performed on? - Sputum samples (thick mucus produced in lungs that can be coughed up) The naked eye can see up to ______ micrometers. - 100 micrometers Cellular organelles can be as small as ______ micrometers. - 0.2 micrometers Does phase contrast need staining? - No What is the difference between phase contrast compared to brightfield? - You are able to visualize things that would otherwise be invisible; cells are highly distinguishable What type of microscopy uses lasers? - Confocal Does electron microscopy use fixation? - Yes

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BIOD 171 MODULE 3 EXAM QUESTIONS WITH
CORRECT ANSWERS GRADED A+

What type of cell does the Giemsa stain? - ✅✅White blood cells

What type of samples are acid-fast stains often performed on? - ✅✅Sputum
samples (thick mucus produced in lungs that can be coughed up)

The naked eye can see up to ______ micrometers. - ✅✅100 micrometers

Cellular organelles can be as small as ______ micrometers. - ✅✅0.2
micrometers

Does phase contrast need staining? - ✅✅No

What is the difference between phase contrast compared to brightfield? -
✅✅You are able to visualize things that would otherwise be invisible; cells are
highly distinguishable

What type of microscopy uses lasers? - ✅✅Confocal

, Does electron microscopy use fixation? - ✅✅Yes

Does electron microscopy use live or dead samples? - ✅✅Dead

What type of secondary (counterstain) dye called in gram staining? -
✅✅Safranin

___________________ ______________ microscopy coats samples with gold of
platinum. - ✅✅Scanning electron microscopy

Does negative staining kill the organism and why? - ✅✅No. Since negative
staining is mildly invasive, it may not kill the microorganism.

Who is the father of medicine? - ✅✅Hippocrates

What is microscopy? - ✅✅Use of light or electrons to magnify objects

What are the two measurements of microscopy? - ✅✅Micrometer and
nanometer

Magnification - ✅✅Increase the size of object

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Uploaded on: April 29, 2025
Number of pages: 13
Written in: 2024/2025
Type: Exam (elaborations)
Contains: Questions & answers

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