Biology O Level 5090 Notes Better //free\\ Jun 2026

Exam Tip: Anaerobic in muscles causes oxygen debt – lactic acid removed after exercise.

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Misidentifying the vs. vein in a circulatory diagram. Exam Tip: Anaerobic in muscles causes oxygen debt

A Comprehensive and Improved Biology O Level 5090 Notes reducing sugars (Benedict's)

Know the food tests for starch (iodine), reducing sugars (Benedict's), proteins (Biuret), and lipids (ethanol emulsion). Plant Nutrition & Transport: Memorise the balanced photosynthesis equation:

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