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Metabolism Flashcards

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13482952590Metabolismthe combination of biochemical reactions within the body0
13491361963catabolismMetabolic pathways that break down molecules, releasing energy.1
13491366531anabolismMetabolic pathways that construct molecules, requiring energy.2
13482960833glycolysisA metabolic process that breaks down carbohydrates and sugars through a series of reactions to either pyruvic acid or lactic acid and release energy from the body in the form of ATP (no oxygen is required) NET = 2 Pyruvic acid,2 H2O, 2 ATP, 2 NADH and H+ (reduced coenzyme)3
13482980881citric acid cycleCompletes the breakdown of glucose by oxidizing a derivative of pyruvate to carbon dioxide.4
13482988346NADH and FADH2high energy electron carrier(s) after reduction in cellular respiration (after they pick up electrons from Kreb's cycle)5
13482990262reductiongain of electrons (same as gaining a hydrogen ion)6
13482990263oxidationThe loss of electrons from a substance involved in a redox reaction.7
13483023498redox reactionA chemical reaction involving the transfer of one or more electrons from one reactant to another; also called oxidation-reduction reaction.8
13483050962substrate-level phosphorylationThe formation of ATP by directly transferring a phosphate group to ADP from an intermediate substrate in catabolism.9
13483067982oxidative phosphorylationThe production of ATP using energy derived from the redox reactions of an electron transport chain; the third major stage of cellular respiration.10
13483072843summary of glucose metabolism11
13483282507The breakdown of a triglyceride into its components is calledlipolysis12
13483298582beta oxidation of fatty acids-occurs in the mitochondria -produce acetyl CoA (precursor of acetoacetate) -two carbon fatty acids at a time13
13491424263Ketogenesis/ ketosisan undesirably high concentration of ketone bodies in the blood and urine; Results from the breakdown of fatty acids as energy resulting in accumulation of acetylCoA because enzymes (made with carbs) are not available in the citric acid cycle14
13491613021Lipogenesisthe process of converting protein into fatty acids15
13488820572amino acid metabolism1. oxidative deamination = glutamic acid loses amine group to form ammonia and is combined with CO2 to form urea 2. transamination- get rid of amino group and switch it for a kept acid 3. Keto acid modification - altered keto acid can enter into the citric acid cycle ***several steps and waste products produced in the use of amino acids as a fuel source16
13491530434Glycogenesisformation of glycogen from glucose or from other monosaccharides, fructose, or galactose17
13491568559Glycogenolysisbreakdown of glycogen to glucose18
13491578645GluconeogenesisThe formation of glucose from noncarbohydrate sources, such as amino acids.19
13491301974function of cholesterolstabilizing component of plasma membrane; parent molecule of steroid hormones20
13491640818Lipoproteinsclusters of lipids associated with proteins that serve as transport vehicles for lipids in the lymph and blood21
13491645033HDL cholesterolGood. High density lipoprotein. High protein, low fat (5% triglyceride, 30% phospholipid, 20% cholesterol, 45-50% protein)22
13491978232LDL cholesterolBad. Low density lipoprotein. Low protein, high fat (10% triglyceride, 20% phospholipid, 45% cholesterol, 25% protein)23

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