Question

Allosteric modulation is due to inhibition action of enzyme by

• A. competitive inhibition
• B. products of the reaction
• C. enzyme concentration
• D. non-competitive inhibition
• E. substrate concentration

Answer 1

The correct option is B products of the reaction

Enzyme inhibition caused by a product of enzyme catalysed reaction is allosteric modulation or feedback inhibition. It means the product of reaction inhibits the enzyme action, e.g. glucose-6-phosphate, the end product in glycolysis can inhibit hexokinase activity.