Carbohydrates - Main energy source - broken down to form glucose for respiration, Lipids (Fats and Oils) - Essential part of cell membranes. plays a role in insulation and energy source, Proteins - Growth and repair of TISSUES, Vitamins - Have specific roles - Vitamin C prevents scurvy, Minerals - Have specific roles - iron needed for the formation of haemoglobin in red blood cells, Fibre - Prevents constipation, Water - Makes up majority of body. Vital for survival.,

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