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.   not catalyzed by enzymes
C.   exclusively anaerobic
D.   extremely diverse
Question #2
Which of these metabolic reactions is energy-releasing & catabolic?
A.   ADP + phosphate into ATP
B.   glucose formed from water & CO2
C.   glucose broken down into pyruvate
Question #3
The rate of chemical reaction of bacteria living in our body decreases abruptly at extremely high temperature.
A.   False
B.   True
Question #4
The early steps in glycolysis involve the ________________.
A.   release of carbon dioxide
B.   making of ATP
C.   use of ATP
D.   use of oxygen gas
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.   water
B.   oxygen gas
C.   glucose
D.   carbon dioxide
Question #7
Like carbohydrates, ______________ may be catabolized to yield ATP molecules.
A.   ADP & phosphate
B.   water & carbon dioxide
C.   fats
Question #8
When cells require energy to do work, ATP is _____________________.
A.   converted into carbon dioxide & water
B.   broken down into ADP & phosphate
C.   synthesized using ADP & phosphate
Question #9
_____________________ are protein catalysts.
A.   Intermediates
B.   Products
C.   Enzymes
D.   Substrates
Question #10
In metabolically efficient bacteria, the same enzyme may be used for different types of chemical reactions.
A.   True
B.   False

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