CH5 Post Lecture Quiz – Flashcards
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A "fishy" odor is usually due to the presence of which of the following molecules?
answer
trimethylamine
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Chlorophyll a is associated with all of the following photosynthetic organisms EXCEPT _____.
answer
green bacteria
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Anabolic reactions that are essentially the reverse of beta-oxidation are important in the synthesis of which of the following?
answer
fatty acids (?)
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The acetyl-CoA generated from beta-oxidation can be used in which of the following pathways?
answer
the Krebs cycle
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Put the following selected events of photosynthesis in the correct order:
a. excitation of the reaction center chlorophyll
b. fixation of CO2
c. photosystem I activity
d. photosystem II activity
answer
d, c, a, b
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Glycerol, necessary for the production of fats, can be derived from which of the following pathways?
answer
Krebs cycle
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Which of the following is NOT a catabolic pathway or reaction?
the conversion of citric acid to oxaloacetic acid
the conversion of glucose to pyruvic acid
the conversion of pyruvic acid to acetyl-CoA
the conversion of glucose to starch
answer
the conversion of glucose to starch
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Which of the following pathways produces the most NADH and the least ATP?
glycolysis
electron transport
Entner-Doudoroff pathway
Krebs cycle
answer
Krebs cycle
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In E. coli, the presence of isoleucine shuts down the enzymatic pathway that results in the synthesis of isoleucine. This is an example of _____.
excitatory allosteric control
feedback inhibition
allosteric activation
denaturation
answer
feedback inhibition
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Which of the following is an INCORRECT association?
electron transport: acetyl-CoA
glycolysis: glucose 6-phosphate
chemiosmosis: ATP synthase
the Krebs cycle: oxaloacetic acid
answer
electron transport: acetyl-CoA