Multiple Choice
Which of the following is appropriate for initial rate method experiments to analyze an enzyme-catalyzed reaction?
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6. Enzymes and Enzyme Kinetics
Enzyme Kinetics
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
An enzyme is considered saturated if it ______ bind more substrate.
A
rarely
B
can always
C
sometimes
D
cannot
Verified step by step guidance1
Understand the concept of enzyme saturation: Enzyme saturation occurs when all active sites of the enzyme molecules are occupied by substrate molecules, meaning the enzyme is working at its maximum capacity.
Recall the relationship between substrate concentration and enzyme activity: As substrate concentration increases, the rate of reaction increases until it reaches a maximum velocity (Vmax). At this point, the enzyme is saturated.
Analyze the question: The question is asking about the state of an enzyme when it is saturated. At saturation, the enzyme cannot bind more substrate because all active sites are already occupied.
Eliminate incorrect options: 'Rarely' and 'sometimes' do not describe the state of saturation accurately. 'Can always' is incorrect because it implies the enzyme can bind more substrate even when saturated.
Select the correct answer: The correct answer is 'cannot,' as an enzyme cannot bind more substrate when it is saturated.
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