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7 Questions

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Characteristics of Enzymes

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Questions and Answers

What effect does uncompetitive inhibition have on the velocity (Vmax) and Km value?

Vmax is reduced, Km remains unchanged (correct)

Both Vmax and Km remain unchanged

Vmax remains unchanged, Km is reduced

Both Vmax and Km are reduced

What is the primary characteristic of an uncompetitive inhibitor with respect to the free enzyme?

Alters the enzyme's structure

High affinity for the free enzyme

Binds reversibly to the substrate

No affinity for the free enzyme (correct)

How does uncompetitive inhibition affect the binding of the inhibitor to the enzyme-substrate complex?

Binds to both the free enzyme and the enzyme-substrate complex

Binds only to the enzyme-substrate complex (correct)

Does not bind to the enzyme-substrate complex

Binds only to the free enzyme

Which of the following statements is true about Km in uncompetitive inhibition?

Km remains constant Signup and view all the answers

What happens to the velocity (Vmax) when uncompetitive inhibition occurs?

Vmax decreases Signup and view all the answers

In uncompetitive inhibition, what effect does the inhibitor have on the enzyme's activity?

Reduces the activity Signup and view all the answers

What distinguishes uncompetitive inhibition from other types of enzyme inhibition?

Inhibitor binds only to the enzyme-substrate complex Signup and view all the answers