| A | B |
| Aerobic Catabolism | Chemical reactions that break down complex substances into simpler substances in the presence of oxygen |
| Amino Acids | Small nitrogen-containing organic compounds; the building blocks of protein |
| Anabolism | Metabolic reactions that build complex substances from simpler substances |
| Anaerobic Catabolism | Chemical reactions that break down complex substances into simpler substances, without the presence of oxygen |
| Base pairing | Pairing of the bases of the nucleotides; adenine and thymine (DNA), guanine and cytosine (DNA and RNA), and adenine and uracil (RNA) |
| Base Sequencing | Sequance or arrangement of the bases in a strand of DNA or RNA |
| Carbohydrates | Type of organic compounds; includes simple sugars, starch, and glycogen; primary source of energy |
| Deoxyribonucleic acid (DNA) | Nuclotides that store the genetic information of the organism |
| Glucose | A monosaccharde, or simple sugar, that serves as the principal fuel for the cells of the body |
| Gluconeogenesis | Biochemical process that makes glucose from nonglucose substances, especially protein |
| Glycogen | Polysaccharide that is the storage form of glucose; also called animal starch |
| Glycolysis | Anaerobic catabolism of glucose into lactic acid |
| Lipids | Organic molecule that includes fats, oils, and steroids |
| Metabolism | All the chemical reactions that occur within the cells; consists of anabolism and catabolism |
| Monosaccharides | A simple sugar consisting of hexoses or pentoses |
| Peptide Bond | Bond formed between two amino acids |
| Ribonucleic acid (RNA) | Nucleotide that copies or transcribes the genetic code from DNA |