Anabolic Pathways Involved in the Synthesis of Essential Molecules Are

Question

Anabolic pathways involved in the synthesis of essential molecules are usually regulated by
A) end product of the pathway.
B) substrate of the pathway.
C) other metabolites that are limiting.
D) upstream intermediates of the pathway.
E) ATP.

Accepted Answer

Anabolic pathways involved in the synthesis of essential molecules are usually regulated by the end product of the pathway. This is known as feedback inhibition, where the end product acts as an allosteric inhibitor of the first enzyme in the pathway, slowing down or stopping the synthesis of the product when levels are high. This prevents excess accumulation of the end product and conserves energy and resources.