UTA Sum Microbiology Lab Tholen Exam Questions Answered And Graded
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Course
Microbiology
Institution
Microbiology
when a tube of nutrient gelatin is inoculated with a gelatinase positive organism, what happens to the medium - CORRECT ANSWER The gelatin medium will remain liquid at 4C
Both motility and sulfur reduction can simultaneously be detected in the SIM test - CORRECT ANSWER False, if an organism can ...
UTA Sum Microbiology Lab Tholen
Exam Questions Answered And
Graded
when a tube of nutrient gelatin is inoculated with a gelatinase positive organism, what
happens to the medium - CORRECT ANSWER The gelatin medium will remain liquid at
4C
Both motility and sulfur reduction can simultaneously be detected in the SIM test -
CORRECT ANSWER False, if an organism can reduce sulfur it will turn black
Which molecule does amylase hydrolyze - CORRECT ANSWER starch
which does not enhance resolution of a microscope - CORRECT ANSWER total
magnification
Which is the PH indicator in the citrate test - CORRECT ANSWER Bromthymol blue
which are two tests that detect sufur reduction - CORRECT ANSWER TSIA and SIM
test
If a microbe is capable of fermenting glucose, then the MR-VP and TSIA test would
have positive results to show this - CORRECT ANSWER true, they both use glucose
broth
is oxidase a hydrolytic enzyme? - CORRECT ANSWER No,oxidase takes part in
electron transport system
how can you tell if a microbe is amylase positive - CORRECT ANSWER it can break
down starch, cleaving the starch and leaving a zone of clearing around the colony.
Iodine reacts to starch, if no starch, no color change
(orange is the color of iodine)
You streak an unknown bacterium on a blood agar plate. After incubation you notice a
distinct zone around the colonies that is completely clear. What does this mean? -
CORRECT ANSWER Beta hemolysis
The mordant used in the Gram stain procedure is ____. - CORRECT ANSWER steam
The mordant used for the endospore stain is - CORRECT ANSWER water
What is the purpose of Kovac's regeant in the SIM test - CORRECT ANSWER To
detect production of indole,
turns into a pink reddish color
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