| A | B |
|---|
| activation energy | energy needed to get a reaction started |
| amino acid | (-NH2) + (-COOH) compound w/amino group on one end & carboxyl group on the other end |
| atom | basic unit of matter |
| adhesion | attraction between molecules of different substances(plants=attraction between unlike molecules) |
| catalyst | speeds up the rate of a chemical reaction |
| carbohydrate | compound made up of carbon, hydrogen and oxygen atoms/major source of energy for human body |
| cohesion | attraction between molecules of the same substance |
| enzyme | protien that acts as a biological catalyst |
| ionic bond | formed when 1 or more electrons are transferred from one atom to another |
| lipid | macromolecule made from carbon & hydrogen atoms, includes fats, oils & waxes |
| molecule | smallest unit of most compounds |
| monomer | small unit that can join together w/other units to form polymers |
| nucleic acid | macromolecule containing hydrogen, oxygen, nitrogen, carbon, & phosphorus |
| polymer | large compound formed from combinations of many monomers |
| protein | macromolecule needed by the body for growth & repair & to make up enzymes-contains carbon, hydrogen, oxygen & nitrogen |
| solution | substance ion which 2 or more substances in which the molecules of the substances aare evenly distributed |
| solvent | substance in which a solute is dissolved to form a solution |
| solute | substance disolved in a solvent to make a solution |
| substrate | reactant of an enzyme-catalyzed reactant |
| covalent bond | bond formed by sharing of electrons between atoms |
