KNES 360 Lecture Notes - Lecture 29: Mitochondrion, Glycogen, Energy Density

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Macronutrients: fats- triglycerides--listennnnnnnn, storage form of fat, free fatty acids and glycerol, storage form of fat that we can use for metabolism- stored in several places, skeletal muscles. Amount of fat and carbo metabolism increases- utilize more fa, break down more triglycerides, and glycogen to make atp from glycolysis. Fat metabolism occurs in mitochondria and carbohydrate metabolism both increase when exercising. When make the transition from moderate to max exercise : all three pathways happen at the same time, increase of fat metabolism and increase of glucose metabolism contributes more. Atp to the whole body production that is necessary to the exercise: greater contributions from fat and carbohydrate metabolism. Human stores of substrates and energy table 2. 1 substrates are carbohydrates and fats. Based on body weight of 65 kg and person has 12% body fat. Carbohydrate has a energy density of 4. 1 kcal/g. Fat has energy density of 9. 4 kcal/g: has twice energy capacity of carbo.

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