Consider a biochemical pathway that branches to form two different products.If the end product of one of the branches is present in a large amount,at what point would the pathway be regulated to ensure adequate production of the end product of the alternative pathway while slowing or stopping production of the product already present in excess?

Question

Quizplus · Accepted Answer

The point where the two pathways branch would be the most logical point for regulation to occur. This ensures that there is a balance between the two products being produced, and allows for the production of the alternative product to be increased while slowing or stopping production of the product already present in excess. Regulating at the very first step in the entire pathway or at the last step in the pathway to the product in excess would not be as effective in achieving this balance, as it would not directly address the production of the alternative product. Regulating at the last step in the pathway to the alternative product still needed may not be necessary if there is already adequate production of that product, and regulating at this point may slow or stop production unnecessarily.

Consider a Biochemical Pathway That Branches to Form Two Different