AP BIOLOGY

Detailed explanation-1: -A fundamental task of proteins is to act as enzymes-catalysts that increase the rate of virtually all the chemical reactions within cells.

Detailed explanation-2: -An enzyme is a biological catalyst and is almost always a protein. It speeds up the rate of a specific chemical reaction in the cell.

Detailed explanation-3: -A catalyst is a substance that speeds up a chemical reaction, or lowers the temperature or pressure needed to start one, without itself being consumed during the reaction. Catalysis is the process of adding a catalyst to facilitate a reaction.

Detailed explanation-4: -Inorganic catalysts, also known as heterogeneous catalysts, include metals and their oxides, supported on porous materials, that emulate the exquisite function of Nature′s catalysts― enzymes. The reactants bind to the active sites on the metal surface through adsorption.

Detailed explanation-5: -Chemical reactions that take place inside living things are called biochemical reactions. The sum of all the biochemical reactions in an organism is referred to as metabolism.