Question

in the example above, how does the final product of the pathway inhibit the pathway? multiple choice by binding to an allosteric site of the first enzyme in the pathway. by binding to the product of the first reaction. by binding to the active site of the last enzyme in the pathway. by binding to the substrate of the first reaction. by binding to the active site of the first enzyme in the pathway.

Explanation:

Feedback inhibition often occurs when the final product of a metabolic pathway binds to an allosteric site of the first enzyme in the pathway, changing its shape and reducing its activity, thus inhibiting the whole pathway.

Answer:

By binding to an allosteric site of the first enzyme in the pathway.