Ch. 7 Notes - Why do you need to breath? Cellular...

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Why do you need to breath? Cellular Respiration"Respire" in the sense that the reaction that yield energy are overall - "oxidative". They are a series of Oxidation/Reduction Reactions Oxidation = The removal of electrons or hydrogen ions (atoms) from a molecule. The result is a decrease in the energy content of the molecule (Burning). Reduction = The addition of electrons or hydrogen ions/atoms to a molecule. The result is an increase in energy content of the molecule (Synthesis). Biochemically (inside cells), oxidation and reduction reactions are always linked. ATP is generated by transferring the energy from oxidized fuels by way of Phosphorylation Reactions . (reductions) On average, cellular respiration is in eukaryotes is about 47% efficient . . . where's the other 53% of the energy? o Cellular respiration in our cells is the process where Glucose and fatty acids are oxidized. It occurs in all of our cells (Except in mammalian erythrocytes which are not true cells) and provides the cell's chief source of energy What is processed cane sugar? (Is it a food or a food additive/drug?)
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To help you answer the above question, answer this one. .. Do we need processed cane sugar in our diets at all? Where do the complex fuels come from?Carbs: Lipids: Cellular Respiration: The Process What do you need to account for and what are your benchmarks? Fill in during Lecture! 1. 2. 3. During digestion, monosaccharides or fatty acids are absorbed through capillaries in intestinal villi and transported to the liver.
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Carbohydrate metabolism is primarily concerned with glucose metabolism Lipid metabolism is primarily concerned with fatty acid metabolism. We'll focus on Glucose metabolism to help us learn the principles of cellular respiration. Then we'll look at Beta oxidation of fatty acids. l The process: Excess glucose in your diet is stored by the liver and skeletal muscles as glycogen, converted to fat and stored in adipose tissue, or excreted in the urine. Insulin stimulates glucose movement into cells. The
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Ch. 7 Notes - Why do you need to breath? Cellular...

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