What is meant by feedback inhibition?

Asked by: Amanda Fox

Definition of feedback inhibition : inhibition of an enzyme controlling an early stage of a series of biochemical reactions by the end product when it reaches a critical concentration.

What is a feedback inhibitor in biology?

Feedback inhibition is a cellular control mechanism in which an enzyme’s activity is inhibited by the enzyme’s end product. This mechanism allows cells to regulate how much of an enzyme’s end product is produced.

What is feedback inhibition and why is it important?

Feedback inhibition occurs when the end product of a reaction interferes with the enzyme that helped produce it. The inhibitor does this by binding to a second active binding site that’s different from the one attached to the initial reactant. The enzyme then changes its shape and can’t catalyze the reaction anymore.

What is feedback inhibition discuss with an example?

An example of feedback inhibition is the inhibition of the activity of the enzyme hexokinase by glucose 6-phosphate in glycolysis. This enzyme catalyses conversion of glucose into glucose 6-phosphate but as the reaction proceeds, increase in concentration of glucose 6-phosphate inhibits the activity of hexokinase.

What is feedback inhibition Class 11?

Feedback inhibition is the process that occurs at the end of the metabolic process in the cell and it inhibits the catalyzing of an enzyme. The finished result is the inhibitor and the compound inactivated is called allosteric chemical.

What is the best example of feedback inhibition?

An example of feedback inhibition is the inhibition of the activity of the enzyme hexokinase by glucose 6-phosphate in glycolysis. This enzyme catalyses conversion of glucose into glucose 6-phosphate but as the reaction proceeds increase in concentration of glucose 6-phosphate inhibits the activity of hexokinase.

What is meant by the term feedback inhibition quizlet?

feedback inhibition. A method of metabolic control in which the end product of a metabolic pathway acts as an inhibitor of an enzyme within that pathway.

What are the main principles of feedback inhibition?

Feedback inhibition involves the use of a reaction product to regulate its own further production (Figure 11). The cell responds to an abundance of the products by slowing down production during anabolic or catabolic reactions.

What is feedback inhibition BYJU’s?

An enzyme also has a site which has the ability to change the shape of an enzyme and thus changing its characteristics. This site is called the allosteric site. The product(s) formed by the enzyme binds with the allosteric site and results in the inhibition of the process. This method is called feedback inhibition.

Is feedback inhibition positive or negative?

Through feedback inhibition, the cell responds to the amount of reaction product in order to regulate its further production. Negative feedback results in the inhibition of an enzyme in a biochemical pathway, reducing the activity of earlier enzymes, and stopping the pathway.

What is feedback regulation in biology?

feedback regulation A process by which the product of a metabolic pathway influences its own production by controlling the amount and/or activity of one or more enzymes involved in the pathway.

What is meant by feedback mechanism?

Feedback mechanism is the mechanism of the body to maintain the levels of hormones in the body in the desired limits. An increase or decrease in the levels of the hormones triggers the feedback mechanism. The body has two types of feedback mechanisms, positive and negative feedback mechanism.

What do you mean by feedback system?

A feedback system is one that compares its output to a desired input and takes corrective action to force the output to follow the input.