Types of feedback inhibition. 

Types of feedback control mechanism
Feedback control mechanism is a phenomenon in which a biochemical pathway is controlled. Usually when the end product of a biochemical pathway increases in excess amount, it inhibits the first enzyme of the pathway. There are several types of feedback control of biochemical pathway, such as 1) Multivalent feedback control 2) co-operative feedback control 3) cumulative feedback control 4) sequential feedback control and 5) isoenzyme feedback control.