Digestion system How would we acquire vitality from nourishments .


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Metabolism—How do we obtain energy from foods?. Susan Algert, Ph.D., R.D. Metabolism. Human body releases energy from chemical bonds in nutrients the body uses for fuel. As bonds break they release energy During metabolism, energy, water and carbon dioxide are released.
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Slide 1

Digestion system—How would we get vitality from sustenances? Susan Algert, Ph.D., R.D.

Slide 2

Metabolism Human body discharges vitality from concoction bonds in supplements the body utilizes for fuel. As securities break they discharge vitality During digestion system, vitality, water and carbon dioxide are discharged

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Energy yielding supplements From sugars—glucose From lipids (trigylcerides)— glycerol and unsaturated fats From proteins—amino acids

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The Cell Cells are work focuses of digestion system Cells have comparative structures Two fundamental parts—core and cytoplasm Mitochondria are power generators that contain vitality creating pathways

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Breaking down glucose for vitality - high-impact 6-C glucose split into equal parts making two 3-Carbon mixes Glycolysis implies glucose part - Carbon mixes get to be 2 Pyruvates will separate further to shape ATP and warmth

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Glucose recovery by means of the Cori cycle- - anaerobic When less oxygen is accessible, pyruvate is changed over to lactic corrosive Liver can change over lactic corrosive to glucose in a reusing procedure Pathway is muscle glycogen to glucose to pyruvate to lactic corrosive ( in liver) to glucose to glycogen

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Pyruvate to Acetyl Co-An Irreversible stride Aerobic Acetyl Co A to Carbon Dioxide through the TCA cycle Electron Transport Chain Acetyl Co-A to fat

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Pyruvate is essential ATP levels are low—metabolic pathways stream toward the generation of ATP Depending on O-2; ATP courses pyruvate to acetyl Co-An or lactate ATP is plenteous; pyruvate changed over to oxaloacetate or amino corrosive alanine; oxaloacetate changed over to glucose and afterward glycogen

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Acetyl Co-An at the intersection Breakdown pathways for glucose, unsaturated fats and some amino acids unite at acetyl-CoA. Acetyl Co-A can\'t come back to pyruvate, however enters vitality making pathways Acetyl Co-A can likewise make ketone bodies and unsaturated fats

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Glycerol and unsaturated fats Glycerol to pyruvate Fatty acids to Acetyl Co-A Beta oxidation Glucose not retrievable from unsaturated fats Breakdown of acetyl-Co-A Fat smolders in fire of starch

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When a man draws on stores Fat used to fuel cerebrum Acetyl Co-A pieces from unsaturated fats join to create ketone bodies Ketone bodies can give some fuel to mind cells When ketone bodies contain a corrosive gathering they are called keto acids (COOH)

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Energy Compounds ATP used to control cell capacities NADH and FADH-2 convey vitality for combination of ATP NADPH conveys vitality for biosynthesis

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Amino Acid Catabolism Amino acids are deaminated and enter TCA cycle Amino acids used to make pyruvate can make glucose Amino acids that make Acetyl Co-A give vitality or muscle to fat ratio ratios yet not glucose

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Energy retrievable from amino acids-Glucogenic amino acids-a.a. separated into pyruvate or halfway of the TCA cycle; gluconeogenesis Ketogenic amino acids—an a.a.a separated into acetyl CoA which can be changed over into ketone bodies

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Transamination Transfer of amino gathering from one amino corrosive to a keto corrosive, creating another unnecessary amino corrosive and a keto corrosive

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Electron Transport Chain Series of proteins that serve as electron bearers Mounted in succession on film inside mitochondria Carriers get electrons, it leaves electrons and gives behind vitality until end when any usable vitality has caught body\'s ATP particles

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TCA and ETC Body\'s most productive method for catching the vitality from supplements and moving it into the obligations of ATP Last stride of ETC low vitality electrons with H molecules consolidate with O2 from the lungs to make H2O

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Which powers can make glucose Parts of protein and fat that can make pyruvate can give glucose; parts that make acetyl Co A can\'t, however give fat Glucose is expected to fuel CNS and red platelets If there is insufficient glucose the body will separate protein

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Making glucose on low Carb diets Fat conveys for the most part acetyl, so you have to separate protein tissue to make glucose High protein diets make your body change over protein to glucose and change over alkali to urea in the liver Urea is discharged through the kidneys Water is expected to discharge urea

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Energy yielding supplements fat gives most kcals per gram Nearly all securities in an unsaturated fat are amongst carbons and hydrogens Oxygen can be added to every one of them (making CO2 and H2O) Energy in securities is discharged as they are oxidized Glucose has less potential for oxidation as oxygen is now clung to every C

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Feasting Surplus protein—Deaminate and change over to acetyl Co-An and fat Surplus sugar - Glycogen Surplus fat- - Lipogenesis

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