| Term | Definition |
| an- | without |
| ana- | up |
| cata- | down |
| de- | undoing |
| mut- | change |
| zyt- | causing to ferment |
| anabolism | matabolic process by which larger molecules are synthesized from smaller ones; anabolic metabolism |
| anaerobic respiration | the energy-releasing breakdown of glucose to lactic acid, in the absence of oxygen |
| anticodon | three contiguous nucleotides of a tRNA molecule that are complementary to a specific mRNA codon |
| catabolism | metabolic process that breaks down large molecules into smaller ones; catabolic metabolism |
| codon | set of three nucleotides of a mRNA molecule corresponding to a particular amino acid |
| dehydration synthesis | anabolic process that joins small molecules by releasing the equivelant of a water molecule; synthesis |
| enzyme | protein that catalyzes a specific biochemical reaction |
| gene | portion of a DNA molecule that encodes information to synthesize a protein, a control sequence, or tRNA or rRNA; the unit of inheritence |
| hydrolysis | enzymatically adding a water molecule to split a molecule into smaller portions |
| oxidation | process by which oxygen combines with another chemical; opposite of reduction |
| replication | reproduction of an exact copy of a DNA molecule |
| substrate | substance upon which an enzyme acts |