Acid
A substance that increases the hydrogen ion concentration of a solution.
Activation energy
the minimum amount of energy required to start a chemical reaction
Adhesion
An attraction between molecules of different substances
amino acids
a simple organic compound containing both a carboxyl (—COOH) and an amino (—NH2) group.
Atom
Basic unit of matter
Base
a compound that produces hydroxide ions in solution
Buffer
A solution that minimizes changes in pH when extraneous acids or bases are added to the solution.
Carbohydrates
the starches and sugars present in foods
catalyst
(n.) a substance that causes or hastens a chemical reaction; any agent that causes change
Cohesion
Attraction between molecules of the same substance
compound
substance formed by the chemical combination of two or more elements in definite proportions