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| 7585332481 | Atomic number | = to the number of protons | 0 | |
| 7585332482 | Mass number | Equal to the mass of the protons and neutrons | 1 | |
| 7585332483 | Atomic weight | Average of mass numbers of all isotopes | 2 | |
| 7585332484 | Isotopes | Same number of protons but different number of neutrons | 3 | |
| 7585332485 | Combining reactions | A + B ➡️ AB | 4 | |
| 7585332486 | Decomposition reactions | AB➡️ A+ B | 5 | |
| 7585332487 | Exchange reactions | AB + C ➡️ AC+B | 6 | |
| 7585332488 | Primary | Amino acid sequence | 7 | |
| 7585332489 | Secondary | Alpha helices or beta pleated sheets | 8 | |
| 7585332490 | Tertiary | Superimposed folding of secondary structures | 9 | |
| 7585332491 | Quaternary | Polypeptide chains linked together in a specific manner | 10 | |
| 7585332492 | Monosaccharides | Simple sugars | 11 | |
| 7585332493 | Disaccharides | Double sugars | 12 | |
| 7585332494 | Polysaccharides | Polymers of simple sugars | 13 | |
| 7585332495 | Table sugar | 14 | ||
| 7585332496 | Phospholipids | Modified triglycerides with two fatty acid groups and a phosphorusgroup | 15 | |
| 7585332497 | Acids bonds with | Peptide bonds | 16 | |
| 7585332498 | Homeostasis | Maintaining the internal environment within physical limits | 17 |
