[ C₆H₁₂O₆ + 6O₂ \rightarrow 6CO₂ + 6H₂O + \textATP (large amount) ]
| Test | Reagent | Positive result | |------|---------|----------------| | Starch | Iodine | Blue-black | | Reducing sugar | Benedict’s (heat) | Brick-red precipitate | | Protein | Biuret (copper sulfate + NaOH) | Purple | | Fat | Ethanol + water | White emulsion | biology o level 5090 notes better
Most students write linear notes. They open the textbook, read a paragraph, and rewrite it in a notebook. This is passive learning. Your brain treats it like typing a grocery list. Sex determination: XX = female, XY = male
The "Better" Approach: Notes must force your brain to process information, not just record it. [ C₆H₁₂O₆ + 6O₂ \rightarrow 6CO₂ + 6H₂O
| Vessel | Wall thickness | Lumen | Valves | Oxygen level | |--------|----------------|-------|--------|---------------| | Artery | Thick, muscular | Small | No | High (except pulmonary artery) | | Vein | Thin | Large | Yes | Low (except pulmonary vein) | | Capillary | One cell thick | Very small | No | Intermediate |