Exercise: Enzyme Reaction

Questions for: Enzyme Reaction

In the reaction, C6H12O6 + 6O2 → 6CO2 + 6H2O + energy, which component is being reduced?
A:
O2
B:
CO2
C:
H2O
D:
Energy
Answer: A
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The fact that β-oxidation of fatty acids, occurs in the mitochondria whereas fatty acid synthesis occurs in the cytoplasmic matrix, is an example of regulation of enzymatic activity by the __________ mechanism.
A:
compartmentation
B:
induction
C:
competitive inhibition
D:
repression
Answer: D
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In the reaction, C6H12O6+ 6O2 → 6CO2 + 6H2O + energy, which component is being oxidized?
A:
C6H12O6
B:
O2
C:
CO2
D:
H2O
Answer: A
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Which of the following is the best evidence for the lock and key theory of enzyme action?
A:
Compounds similar in structure to the substrate inhibit enzyme activity
B:
Enzymes are found in living organisms and speed up certain reactions
C:
Enzymes speed up reactions by definite amounts
D:
Enzymes determine the direction of a reaction
Answer: A
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To a living organism, which of the following has the greatest amount of available energy per molecule?
A:
ATP
B:
ADP
C:
AMP
D:
H2O
Answer: A
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