Negative & Positive Feedback

Practice: ________ is when the product of a biochemical pathway activates the production of itself.

a) Negative feedback inhibition.

b) Positive feedback.

c) Substrate feedback inhibition.

d) Product feedback inhibition.

Practice: Which of the following is TRUE about feedback inhibition?

a) Feedback inhibition has no physiological importance.

b) Multiple products are required for feedback inhibition.

c) Feedback inhibition of a pathway can only be accomplished by the products of that pathway.

d) Feedback inhibition involves products binding to the active site to prevent enzyme activity.