If the alpha-ketoacid product from the transaminase reaction that uses alanine and alpha-ketoglutarate as substrates goes on to make glucose via the __________ pathway, then the amino acid carbon skeleton is considered to be __________. ANSWER citric acid cycle; ketogenic glycogen synthesis; ketogenic glycolysis; glucogenic gluconeogenesis; glucogenic
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If the alpha-ketoacid product from the transaminase reaction that uses alanine and alpha-ketoglutarate as substrates goes on to make glucose via the __________ pathway, then the amino acid carbon skeleton is considered to be __________.
ANSWER
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citric acid cycle; ketogenic
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glycogen synthesis; ketogenic
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glycolysis; glucogenic
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gluconeogenesis; glucogenic
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- The body uses carbohydrates, fats, and proteins to fuel all its activities. These fuels each start down a different path, but they all ultimately end up providing energy by going through the TCA cycle and electron transport chain. Identify which compounds can be formed during metabolism from each fuel source. Compounds Formed During Metabolism Glucose Fuel Sources Glycerol Fatty acids Glucose Glucogenic amino acids Ketogenic amino acids Acetyl COA Pyruvate Lactate O B U 0 040 O O D 0 0000 1 200000 FatWhat enzyme will not be used if the oxidative portion of the pentose phosphate pathway is operating to produce ribose 5-phosphate? Ribulose 5-phosphate isomerase 6-phosphoglucono-lactonase 6-phosphogluconate dehydrogenase TransaldolaseWhich of the following describes the process of converting a pyruvate back to glucose? glycogenolysis glycolysis glycogenesis gluconeogenesis
- Two turns of the citric acid cycle will process ________ molecule(s). one pyruvate one pyruvate one glucose one glucose two fructose two fructosechoose the metabolic pathway being described in the statement choices: Digestion Glycolysis Formation of Acetyl CoA Krebs Cycle ETC Reactions Glycogenesis Glycogenolysis Gluconeogenesis 1. catalyzed initially by glycogen phosphorylase 2. breaking of glycosidic linkages of glycogen 3. requires pumping of hydrogen ions 4. lactic acid is converted to glucoseIf TWO acetyl CoA enter the citric acid cycle, for each glucose we started with, then how many of each product listed below do we get. _____ ATP _____ NADH _____FADH2 _____ CO2
- What glycolytic intermediate is fructose converted to in the muscle, such that it can be utilized in glycolysis? Glucose 6-phosphate Fructose 6-phosphate Glyceraldehyde 3-phosphate Dihydroxyacetone phosphatechoose the metabolic pathway being described in the statement choices: Digestion Glycolysis Formation of Acetyl CoA Krebs Cycle ETC Reactions Glycogenesis Glycogenolysis Gluconeogenesis conversion of glyceradehyde-3-PO4 to glucose2. liberates more ATP from reduced coenzymes 3. occurs when the body runs out of carbohydrates 4. pyruvic acid is decarboxylated and oxidized 5. generates two molecules of pyruvate for every glucose catabolized 6. second release of CO2 in cellular respiration 7. catabolism of dietary carbohydrates 8. response to a drop in blood glucose9. catalyzed by pyruvate dehydrogenase 10. actic acid is converted to glucoseWhich of the following statements about glucose metabolism is correct? * Red blood cells can catalyse aerobic glycolysis because they contain oxygen bound to haemoglobin. Fructose cannot be used for gluconeogenesis in the liver. Glycolysis can proceed in the absence of oxygen only if pyruvate is formed from lactate in muscle. All of the reactions of glycolysis are freely reversible for gluconeogenesis. Red blood cells can only metabolise glucose by anaerobic glycolysis and the pentose phosphate pathway.