Curriculum
Science — Second Preparatory
Unit 1: Matter and Energy
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Unit 2: Matter and Chemical Reactions
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Unit 3: Energy Flow in Photosynthesis and Respiration
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Unit 4: Geological Processes
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Text lesson
Chemistry of Nutrition
Chemistry of Nutrition
Lesson summary
Lesson summary
- Carbohydrates and fats are sources of energy. Proteins are needed for growth, building and repair.
- Vitamins and mineral salts are needed in small amounts and do not supply energy.
- Iodine detects starch, Benedict’s solution detects reducing sugar, the biuret test detects protein, and filter paper detects fats.
- Carbohydrates and proteins give 4 kcal per gram. Fats give 9 kcal per gram.
Chemistry of Nutrition · 7 / 7
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