Biology B1

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Diet & Metabolic Rate

BALANCED DIET - different food groups = different uses in the body need to have a balance of food.

Energy: Carbohydrates & Fats (also for warmth)

Growth/Cell repair & replacement: Protein General Health: Vitmains & Minerals *Fibre to aid smooth running digestive system

METABOLIC RATE the rate at which chemical reactions take place (cell respiration)

Things effecting metabolic rate: Muscle to fat ratio: Musle tissue needs more energy than fat tissue Exercise: Can boost resting MR because it builds muscle Being bigger in size: Have higher MR than smaller people because body requires more energy - because you have more cells Gender: Men higher MR than women because they are bigger and have larger proportion of muscle

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