Enzyme Inhibition Quiz

What is the primary characteristic of reversible enzyme inhibitors?

• They can be removed to restore normal reaction rates.

• They are not useful for controlling reactions.

• They permanently deactivate enzymes.

• They only affect non-competitive sites.

How do competitive inhibitors affect enzyme activity?

• They permanently deactivate the enzyme.

• They compete with the substrate for the active site.

• They change the shape of the enzyme.

• They bind to a different site on the enzyme.

What is the effect of non-competitive inhibitors on enzymes?

• They increase the enzyme's activity.

• They block the active site directly.

• They bind to the active site, preventing substrate binding.

• They bind elsewhere, altering the enzyme's shape.

What role does ATP play in end product inhibition?

• It acts as a competitive inhibitor of PFK.

• It enhances the activity of PFK.

• It has no effect on PFK.

• It serves as a non-competitive inhibitor of PFK.

How does the level of ATP affect the rate of respiration?

• ATP levels do not affect respiration rate.

• High ATP levels increase respiration rate.

• Low ATP levels decrease respiration rate.

• High ATP levels decrease respiration rate.