Microbiology lab practical exam 1 Questions and
Answers 100% Pass
Wet mount steps: - ✔✔1.water
2. specimen
3. Cover slip over specimen
hanging drop steps: - ✔✔1. Vaseline around cover slip
2. micro organism in center of cover slip
3. place concave slide on cover slip
Gram stain steps: - ✔✔1. Crystal Violet
2. Gram's Iodine
3. Ethyl Alcohol
4. Safranin Red
negative stain steps: - ✔✔1. nigrosin
2.heat loop
3.bacteria
4. slide to spread mixture
5. air dry
acid-fast stain steps: - ✔✔1. carbolfuchsin
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2. acid alcohol
3. methylene blue
4. wash & dry
simple stain steps - ✔✔1. fixed smear slide
2. dyes
3. rinse & dry
nutrient broth - ✔✔-liquid media used to grow bacteria
agar - ✔✔-used to culture microorganisms
candle jar - ✔✔-used for anaerobic organisms
Petri dish - ✔✔-Used to culture or observe bacteria growth
slant - ✔✔-a medium for which bacteria can grow on.
E.coli Gram stain - ✔✔red colored rods
S. epidermidis Gram stain - ✔✔purple colored grapes
B. subtilis Gram stain - ✔✔purple colored rods
list information gained from a
particular slide based on staining techniques (cell morphology, arrangement, cell wall structure, Gram
stain reaction or other staining reaction). - ✔✔...
show motility on a hanging drop - ✔✔movement because of flagella
show motility on a Brownian movement. - ✔✔bacteria moves randomly, due to the energy of a system
(vibration)
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