AP BIOLOGY

Detailed explanation-1: -Enzymes are not reactants and are not used up during the reaction. Once an enzyme binds to a substrate and catalyzes the reaction, the enzyme is released, unchanged, and can be used for another reaction.

Detailed explanation-2: -Enzymes let chemical reactions in the body happen millions of times faster than without the enzyme. Because enzymes are not part of the product, they can be reused again and again.

Detailed explanation-3: -Enzymes speed the reaction, or allow it to occur at lower energy levels and, once the reaction is complete, they are again available. In other words, they are not used up by the reaction and can be re-used. Enzymes are designed to work most effectively at a specific temperature and pH.

Detailed explanation-4: -As a whole we can say that enzymes are one of the most important components which accelerates the rate of any biochemical reactions. They are mostly reusable because they are not the reactants, they serve only as the catalyst to make the reaction more efficient.

Detailed explanation-5: -The substrate undergoes biochemical reaction. The structural configuration of the end products changes and does not match with the structural configuration of enzyme molecule. The enzyme is thus set free to combine with another substrate molecule and thus can be used over and over again.