BIOD 171 ESSENTIAL MICROBIOLOGY COMPREHENSIVE EXAM SCRIPT VERIFIED QUESTIONS ANSWERS ACCURATE SOLUTIONS PACK

BIOD 171 ESSENTIAL MICROBIOLOGY
COMPREHENSIVE EXAM SCRIPT VERIFIED
QUESTIONS ANSWERS ACCURATE
SOLUTIONS PACK

●● 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
Answer: there is a thick peptidoglycan cell wall