measurement system used to indicate the concentration of hydrogen ions (H+) in solution; ranges from 0 to 14
weak acid or base that can react with strong acids or bases to help prevent sharp, sudden changes in pH
large compound formed from combinations of many monomers
large macromolecule formed from monosaccharides
Formed when one or more electrons are transferred
reactant of an enzyme-catalyzed reaction
a slight attraction that develops between the oppositely charged regions of nearby molecules
monomer of nucleic acids made up of a 5-carbon sugar, a phosphate group, and a nitrogenous base
nucleic acid that contains the sugar deoxyribose
compound that forms hydrogen ions (H+) in solution
protein that acts as a biological catalyst
macromolecule made mainly from carbon and hydrogen atoms; includes fats, oils, and waxes
Consist entirely of one type of atom
small unit that can join together with other small units to form polymers
compound made up of carbon, hydrogen, and oxygen atoms; major source of energy for the human body
Formed by the chemical combination of two or more element
energy needed to get a reaction started
substance that is dissolved in a solvent to make a solution
substance that speeds up the rate of a chemical reaction
smallest unit of most compounds