Below is a metabolic pathway having 3 chemical reactions and 3 enzymes.Enzyme 1 has 2 binding sites-- 1 for the substrate A and another for the end productAs the pathway proceeds,the end product in higher quantities will react with enzyme 1,blocking the enzyme's binding to the substrate.Which statement is true about this pathway?
Enz1 enz2 enz3
Substrate A -- B -- C -- D end product

Question

Below is a metabolic pathway having 3 chemical reactions and 3 enzymes.Enzyme 1 has 2 binding sites-- 1 for the substrate A and another for the end productAs the pathway proceeds,the end product in higher quantities will react with enzyme 1,blocking the enzyme's binding to the substrate.Which statement is true about this pathway?
Enz1 enz2 enz3
Substrate A --> B --> C --> D end product

Quizplus · Accepted Answer

The end product inhibits the enzyme that catalyzes the first step in the pathway, which is a case of noncompetitive inhibition. As a result of the inhibition of the enzyme, there will eventually be less substrate converted to the end product D. Enzyme 1 has an active site and a regulatory site.

Below Is a Metabolic Pathway Having 3 Chemical Reactions and 3