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This quiz contains 8 questions from a mix of 1 subtopics.
Enzyme affinity refers to the strength of attraction between an enzyme and its .
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An enzyme is described as having a high affinity. Does it have a weak or strong attraction to its substrate?
weak
strong
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Which of the following definitions best describes Vmax in the context of enzyme reactions?
the maximum velocity at which the enzyme can catalyse the reaction.
the minimum velocity at which the enzyme can catalyse the reaction.
the velocity at which an enzyme-substrate complex forms.
the substrate concentration required to reach saturation point.
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The point at which all active sites are occupied by a substrate is known as the point.
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How does an increase in substrate concentration affect Vmax?
Vmax remains constant.
Vmax increases indefinitely.
Vmax decreases.
Vmax initially increases, then plateaus.
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Which parameter represents the substrate concentration at which an enzyme operates at half its maximum velocity?
Kcat
Km
Keq
Vmax
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In the context of enzyme affinity, a low Km value indicates a _________ enzyme-substrate affinity.
high
low
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How does an increase in enzyme affinity for a substrate affect the Km value?
the Km value increases.
the Km value remains unchanged.
the Km value initially increases, then plateaus.
the Km value decreases.
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