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Questions and Answers
What does the active site of an enzyme primarily bind?
What does the active site of an enzyme primarily bind?
- Coenzymes
- Allosteric inhibitors
- Noncompetitive inhibitors
- Competitive inhibitors (correct)
What is the complete enzyme complex known as?
What is the complete enzyme complex known as?
- Holoenzyme (correct)
- Allosteric enzyme
- Apoenzyme
- Coenzyme
What does Km of an enzyme represent?
What does Km of an enzyme represent?
- The rate of the enzymatic reaction
- Dissociation constant
- The normal physiological substrate concentration
- The substrate concentration at ½Vmax (correct)
What does the velocity (V) of an enzyme-catalyzed reaction relate to?
What does the velocity (V) of an enzyme-catalyzed reaction relate to?
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What does a competitive inhibitor of an enzyme do?
What does a competitive inhibitor of an enzyme do?
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What is the complete enzyme complex known as?
What is the complete enzyme complex known as?
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What does Km of an enzyme represent?
What does Km of an enzyme represent?
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Study Notes
Enzyme Kinetics
- The active site of an enzyme primarily binds to substrate molecules.
Enzyme Complex
- The complete enzyme complex is known as the holoenzyme, which consists of the enzyme (apoenzyme) and its cofactor.
Km of Enzyme
- Km (Michaelis constant) of an enzyme represents the substrate concentration at which the reaction rate is half of the maximum velocity (Vmax).
Enzyme-Catalyzed Reaction
- The velocity (V) of an enzyme-catalyzed reaction relates to the rate at which the enzyme converts substrate into product.
Competitive Inhibition
- A competitive inhibitor of an enzyme binds to the active site, reducing the binding of substrate and decreasing the reaction rate.
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