When an end product of a reaction is in excess and inhibits the first enzyme of the pathway,this is an example of positive feedback.

Question

Quizplus · Accepted Answer

This statement describes feedback inhibition, which is an example of negative feedback. In feedback inhibition, the end product of a pathway binds to the first enzyme, leading to a decrease in the pathway's activity. Positive feedback instead amplifies the changes in a system, leading to an even greater response.

When an End Product of a Reaction Is in Excess