NEET Memory Strategies for Biomolecules
1. Fat-Soluble Vitamins — "ADEK" "All (A) Dogs (D) Eat (E) Korn (K)" — or — "ADEK — All Dissolve Easily in fat, Kool"
2. Vitamin Deficiency Diseases — First-Letter Trick
| Vitamin | Disease | Memory Hook |
|---|---|---|
| A | Night blindness | A = hAs eyesight issues |
| B1 (Thiamine) | Beriberi | B1 → B-B (BeribEri) |
| B2 (Riboflavin) | Cheilosis | B2 → CHEilosis |
| B3 (Niacin) | Pellagra | B3 → PELlagra (4 Ds) |
| B6 (Pyridoxine) | Convulsions | B6 → Convulsions (6 + fits) |
| B9 (Folic acid) | Megaloblastic anaemia | B9 → MEGA blasts (big cells) |
| B12 (Cyanocobalamin) | Pernicious anaemia | B12 → PERNicious (B-12 = pernicious) |
| C | Scurvy | C → sCurvy |
| D | Rickets | D → Deficient bones → Rickets |
| E | Infertility | E → infErtility |
| K | Blood clotting delay | K → Koagulation (German) |
3. Essential Amino Acids — "PVT TIM HALL" Phenylalanine, Valine, Tryptophan, Threonine, Isoleucine, Methionine, Histidine, Arginine, Leucine, Lysine
4. Protein Structure Levels — "1-2-3-4 Bond Ladder"
- 1° → Peptide (covalent, strongest)
- 2° → H-bonds (secondary)
- 3° → Disulfide + hydrophobic + ionic + H-bonds (tertiary)
- 4° → Same as 3° between subunits (quaternary)
5. DNA Base Pairing — "AT = 2, GC = 3" Simple numeric memory: A-T has 2 H-bonds; G-C has 3 H-bonds. Or: "G-C = Great-Connection (3 bonds), A-T = Adequate-Touch (2 bonds)"
6. Reducing Sugars — "LGMF are Reducing" Lactose, Glucose, Maltose, Fructose are all reducing. Sucrose is the exception (non-reducing).