No. Enzymes are not consumed in the reaction.
You may know that ENZYMES ARE NOTHING BUT CATALYSTS.
Thus you have to know about the properties of catalysts. Here you go.
- Catalysts change the rate of the reaction(+ve catalyst speeds up and -ve catalyst speeds down)
- They never initiate any reaction.They only alter the rate of reaction which is already occurring at a particular rate.
- They never alter the equilibrium state in a reversible reaction but speeds up the reactants to attain equilibrium state faster.
They are specific in its action and they are needed in very small amounts
Finally, They remain UNCHANGED IN MASS AND CHEMICAL COMPOSITION AT THE END OF THE REACTION.
Enzymes help the substrates convert into products quickly. Once the products are formed, they will say Goodbye to the enzyme. And the enzyme is unaltered and can be reused again.