Question

In microbial cells, the endproduct of a metabolic pathway may bind to one of the first couple of enzymes in the pathway. What is the correct name of this process?

a. noncompetitive inhibition
b. competitive inhibition
c. feedback inhibition
d. a and c
e. a and b
f. all answers are correct

Answer 1

Answer: alternative C.

Explanation: The process in which the endproduct of a metabolic pathway binds to enzymes that are placed in the same pathway is called feedback inhibition. It is a strategy to diminish the production of this endproduct, regulating the whole pathway until the endproduct concentration decreases and so the production can restart. While the endproduct is binding to the enzymes, they aren't able to bind to other molecules in order to produce more of the endproduct, characterizing this method as an inhibition.