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CCRI micro exam vito| Questions solved 100% Correct/Verified Solutions
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CCRI micro exam vito| Questions solved100% Correct/Verified Solutions
The universal energy compound is - ANSWER ATP
Anaerobic respiration - ANSWER does not require oxygen
All of the following pertain to glycolysis except - ANSWER degrades glucose to CO2 and H2O.
All enzymes - ANSWER work best at an optimum temperature
All of the following are true about ethyl alcohol fermentation except - ANSWER produces
two FADH2
Sewage - ANSWER microbes break down sewage
Cyannobacteria - ANSWER major oxygen producer
GMO - ANSWER Due to biotech.
-can modify plasmids
, Bacillus thuringiensis - ANSWER paralyzes the gut of an
insect -produces a natural pesticide to damage -ends up
being fatal to insects
Insulin - ANSWER comes from humans, made by microbes.
-humalin: made from DNA
Ethanol - ANSWER from fermentation, makes
fuel -microbes change corn into biofuels
Exponential growth - ANSWER Organism under ideal conditions will double within 20 minutes,
and keep repeating.
Lag -> log (exponential growth) -> Stationary (dying off, still reproducing) -> Death phase
Petroff-Hausser counting method - ANSWER count directly on grid
Serial dilution - ANSWER 1 ML culture in 99 ML water- concentration 1:100
1 ML culture in 9 ML water- concentration 1:10 -important for population
count (plate count)
Membrane filter - ANSWER filter solution and trap
bacteria -little pores
pH - ANSWER concentration of hydrogen ions (H+) in
solution - pH 7 is neutral
-below 7, more hydrogen ions
-above 7, less hydrogen ions
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