Microbiology 020 - General Microbiology » Spring 2022 » Review Quiz 3

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Question #1
Which is true about bacterial metabolism?
A.   unaffected by environmental chnges
B.   exclusively anaerobic
C.   extremely diverse
D.   not catalyzed by enzymes
Question #2
Which of these metabolic reactions is energy-releasing & catabolic?
A.   glucose formed from water & CO2
B.   glucose broken down into pyruvate
C.   ADP + phosphate into ATP
Question #3
The rate of chemical reaction of bacteria living in our body decreases abruptly at extremely high temperature.
A.   True
B.   False
Question #4
The early steps in glycolysis involve the ________________.
A.   making of ATP
B.   use of oxygen gas
C.   release of carbon dioxide
D.   use of ATP
Question #5
What happens to pyruvic acid produced by human cells in the absence of O2?
A.   It gets converted to ethyl alcohol.
B.   It gets converted to lactic acid.
C.   It gets further broken down into carbon dioxide & water.
Question #6
In aerobic respiration, energy needed to make ATP comes from ___________.
A.   glucose
B.   oxygen gas
C.   carbon dioxide
D.   water
Question #7
Like carbohydrates, ______________ may be catabolized to yield ATP molecules.
A.   water & carbon dioxide
B.   fats
C.   ADP & phosphate
Question #8
When cells require energy to do work, ATP is _____________________.
A.   converted into carbon dioxide & water
B.   synthesized using ADP & phosphate
C.   broken down into ADP & phosphate
Question #9
_____________________ are protein catalysts.
A.   Substrates
B.   Products
C.   Intermediates
D.   Enzymes
Question #10
In metabolically efficient bacteria, the same enzyme may be used for different types of chemical reactions.
A.   False
B.   True

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