1 glucose produces how many atp?
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Biology textbooks often state that 38 ATP molecules can be made per oxidized glucose molecule during cellular respiration (2 from glycolysis, 2 from the Krebs cycle, and about 34 from the electron transport system).
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1 Answer. Well in one mole of glucose there are 6.022×1023 individual glucose molecules.
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According to Guyton, 1 ATP has ~12,000 calories (12 kcals). Thus 38 ATPs would have 456,000 calories or 456 kcals. However, the complete oxidation of each gram molecule of glucose releases 686,000 calories or 686 kcals.
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However, under anaerobic conditions, only 2 mol of ATP can be produced. Aerobic glycolysis specifically occurs in 2 steps. The first occurs in the cytosol and involves the conversion of glucose to pyruvate with resultant production of NADH. This process alone generates two molecules of ATP.
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The amount of ATP that is generated by glycolysis is relatively low. Two ATP molecules are required to start glycolysis (from glucose), and four are generated by substrate-level phosphorylation.
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How many ATP are produced in the electron transport chain? 36 ATP are generated in the electron transport chain.
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10 NADH →10 NAD + 30 ATP 2 FADH2 → 2 FAD + 4 ATP Complete breakdown of 1 Glucose yields 38 ATP molecules.
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Anaerobic respiration makes a total of 2 ATP. Aerobic respiration is much more efficient and can produce up to 38 ATP with a single molecule of glucose.
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In aerobic conditions, the process converts one molecule of glucose into two molecules of pyruvate (pyruvic acid), generating energy in the form of two net molecules of ATP. Four molecules of ATP per glucose are actually produced, however, two are consumed as part of the preparatory phase.
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ATP Yield. In a eukaryotic cell, the process of cellular respiration can metabolize one molecule of glucose into 30 to 32 ATP. The process of glycolysis only produces two ATP, while all the rest are produced during the electron transport chain.
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During glycolysis, each glucose molecule is broken down into two pyruvic acid molecules. This is a multi-step process, and it produces four ATP molecules.
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Outcomes of Glycolysis Glycolysis starts with one molecule of glucose and ends with two pyruvate (pyruvic acid) molecules, a total of four ATP molecules, and two molecules of NADH.
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7 ATP are made per mole of glucose in glycolysis aerobically; but anaerobically, pyruvate is converted to lactate by lactate dehydrogenase at a cost of 2 NADH (5 ATP). Therefore 7 ATP - 5 ATP = 2 ATP.
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During the process of Krebs cycle 2 molecules of ATP, 8 molecules of NADH and 2 molecules of FADH2 were produced per molecule of glucose. A total of 28 ATPs are produced during Krebs cycle per a glucose molecule.
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Most of the ATP produced by aerobic cellular respiration is made by oxidative phosphorylation. ... Biology textbooks often state that 38 ATP molecules can be made per oxidized glucose molecule during cellular respiration (2 from glycolysis, 2 from the Krebs cycle, and about 34 from the electron transport system).
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5 moles of glucose produces 20 moles of ATP and consumes 10 moles of ATP.
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There is a theoretical maximum of 38 ATP produced from a single glucose molecule: 2 NADH produced in glycolysis (3 ATP each) + 8 NADH produced in Krebs cycle (3 ATP each) + 2 FADH2 produced I don't know where (2 ATP each) + 2 ATP produced in the Krebs cycle + 2 ATP produced in glycolysis = 6 + 24 + 4 + 2 + 2 = 38 ATP, ...