Question

Enzymes catalyse the conversion of a substrate into product by ___

• A. increasing the activation energy
• B. decreasing activation energy
• C. getting consumed in the chemical reaction
• D. reacting with the substrate to form products

Answer 1

The correct option is B decreasing activation energy

Enzymes are macromolecular biological catalysts. Enzymes accelerate, or catalyze, chemical reactions. The molecules at the beginning of the process upon which enzymes may act are called substrates and the enzyme converts these into different molecules, called products. They are neither consumed nor a reactant in the process. They enable chemical reactions by lowering the activation energy.

Activation energy is the minimum quantity of energy which the reacting species must possess in order to undergo a specified reaction.