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BIOD 171 ESSENTIAL MICROBIOLOGY 2026 ACTUAL EXAM PAPER QUESTIONS AND SOLUTIONS GRADED A PLUS

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BIOD 171 ESSENTIAL MICROBIOLOGY 2026 ACTUAL EXAM PAPER QUESTIONS AND SOLUTIONS GRADED A PLUS

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BIOD 171 ESSENTIAL MICROBIOLOGY 2026
ACTUAL EXAM PAPER QUESTIONS AND
SOLUTIONS GRADED A PLUS


◉ Simple staining is used mostly for...
Answer: A quick observance


◉ Simple staining uses __________ dye.
Answer: Positively charged


◉ Acid fast stain is used for...
Answer: bacteria resistant to traditional staining; mostly for
mycobacterium tuberculosis


◉ Resolution
Answer: distance between two objects at which the objects can still
be seen as separate


◉ Contrast
Answer: difference in light absorbance between 2 areas

, ◉ Dark field microscopy light
Answer: reflects light off of specimen at an angle


◉ Can you see intracellular structures with a dark field microscope?
Answer: No


◉ What microscope can capture in 3-D?
Answer: Confocal


◉ What are the two types of electron microscopes?
Answer: transmission electron microscope (TEM) and scanning
electron microscope (SEM)


◉ What is the difference between TEM and SEM?
Answer: TEM passes through the sample, SEM reflects off the
surface


◉ Gram staining was developed by
Answer: Hans Christian Gram in 1884


◉ Gram-positive bacteria shows that

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