Combined ScienceCode 5129
Diet
What this topic asks you to be able to do
- Name the elements from which (a) carbohydrates, (b) lipids (fats and oils) and (c) proteins are composed.
- State that glucose is the building block of starch, cellulose and glycogen, amino acids build proteins, and lipids are formed from glycerol combined with fatty acids
- Describe the chemical tests for the following, and be able to carry them out: (a) starch, using iodine solution (b) glucose and maltose, using Benedict’s solution (c) protein, using the biuret test (d) lipids, using the ethanol emulsion test
- Name the main food sources of carbohydrates, lipids, proteins, vitamins (C and D only), mineral ions (calcium and iron only), fibre (roughage) and water, and outline why each one matters in the diet
- Understand what is meant by a balanced diet
- Describe the signs of Type 2 diabetes, limited to a raised glucose concentration in the blood and glucose in the urine, and how it is treated through diet, exercise and/or giving insulin