BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Answer and Explanation: The process that changes one set of chemicals into another set of chemicals is a chemical reaction. In a chemical reaction, substances called reactants combine with each other and are changed into entirely new substances, called products.

Detailed explanation-2: -chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products. Substances are either chemical elements or compounds. A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.

Detailed explanation-3: -Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions.

Detailed explanation-4: -Chemical reactions involve changes in the chemical bonds that join atoms into compounds.