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Enzyme Reaction

Enzyme Reaction
Reduction is the

gain of electron
gain of protons
loss of proton
loss of electron

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Enzyme Reaction
The ability of a competitive inhibitor to bind to an active site in an allosterically controlled enzyme is __________ than the ability of a non-competitive inhibitor to bind to an active site in the same allosterically controlled enzyme.

lesser
approximately equal
half
greater

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Enzyme Reaction
About 7.3 kcal/mole are released when

the terminal phosphate bond of ATP is broken by hydrolysis
ATP hydrolysis is coupled to sucrose synthesis
glucose is converted to CO2 and H2O
NAD+ is reduced to NADH

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Enzyme Reaction
The affinity of an enzyme for its substrate, when the enzyme has a Km of 0.50 M will be __________ than the affinity of an enzyme for its substrate when the enzyme has a Km of 0.05 M.

lesser
greater
half
approximately equal

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Enzyme Reaction
In the reaction, C6H12O6 + 6O2 → 6CO2 + 6H2O + energy, which component is being reduced?

H2O
Energy
O2
CO2

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Enzyme Reaction
Anthranilate synthase, the first enzyme of tryptophan biosynthesis after the branch point shows feedback inhibition and repression due to

L-tryptophan
L-serine
D-L-tryptophan hydantoin
pyruvate

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