during gylcolysis one molecule of glucose is split into two molecules of?
459486
pyruvic acid or pyruvate
858478
glyceraldehyde 3-phosphate which has three carbons. two of them can make a glucose molecule after calvin benson cycle.
825956
ATP production per pyruvate that enters the Krebs Cycle:\n         3 NADH =   9 ATP\n         1 FADH2 = 2 ATP\n         1 GTP = 1 ATP\n                      ------------------\n                        12 ATP per pyruvate or 24 ATP per glucose\n\n**note**\n\n1 NADH = 3 ATP generated\n1 FADH2 = 2 ATP generated\n\nthese NADH and FADH2 are converted to ATP when they enter the oxidative phosphorylation.\n\nIf you are confused where the 38 ATPs come from, here it is:\n(1) Glycolysis - 1 mole glucose is converted to 2 moles pyruvate.\n         \n                2 ATP\n                2 NADH = 6 ATP generated\n              ------------------------------------------\nGlycolysis generates 8 ATP\n\n(2) 2 moles of  Pyruvate generated from glycolysis cannot enter the Krebs Cycle unless it will be converted to Acetyl-CoA. In this process, it produces 2 moles of pyruvate generate 2 moles of NADH.\n          2 NADH = 6 ATP\n\nin this process, 6 ATP is generated.\n\n(3) Krebs Cycle: 2 acetyl-CoA then enters the Krebs cycle.\n(see explanation above) generating 24 ATPs.\n\nso for the 3 steps: \n           8 ATP (glycolysis) \n           6 ATP (intermediate step 2)\n          24 ATP (Krebs cycle)\n-------------------------------------------\n          38 ATP
92610
generally glucose is the intial substrate in glycolysis .......
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From respiration: Here, glucose molecules in the cell are broken down; the molecules have strong bond between them and so when they are broken, energy is provided(by mitochondria) and when new molecules are formed, energy is released, which the cell uses for various processes.\n\nFrom protein synthesis: It occurs on the ribosomes in the cytoplasm, and aminoacids are combined to form proteins and this releases energy.\n\nFrom ATP(adenosine tri-phosphate): The ATP molecule is a packet of energy which stores the energy released during any process going on in the cell and then releases the energy as and when required by the cell.
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YES that is true . when we take in the food  during the process of respiration the glucose is broken down to pyruvic acid CH3COC0OH BY THE process of glycolysis , initially by taking oxygen by cytoplasm . when it gets more oxygen the pyruvic acid enters mitochondria and is converted to CO2 AND H20 . This cycle is called KREB's cyle . the synthesis of ATP molecule takes place in the F1 particle of mitochondria . \nthe equaton is \nC6H12O6+O2---->CH3C0COOH + O2--->CO2 + H20 \nthis process is called aerobic trespiration \nrespiration invoves oxidation of food ....\nPLEASE VOTE IT AS THE BEST ANSWER IF YOU LIKE IT ..PLEASE......\nI THINK I HAVE ANSWERED YOUR MANY QUERIES
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its b from glucose see Glycosis for a futher understanding
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glycolysis is the process by which the glucose made in photosynthesis is broken down.\n\nIt takes place in the cells cytoplasm.\n\nUses glucose(sugar) and oxygen\n\nMakes carbon dioxide and water
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Glyceraldehyde-3-phosphate (aka GAP), and ultimately that is made into glucose.
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maltose it is glucose+glucose
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Pyruvate molecules are 3 carbon units.  if they each lose CO2, that leaves two-carbon units.  answer is E
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glucose is fuel for the body.  glycolysis makes ATP which is essential for the body to function
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ATP expelling water.  Glucose is broken down to make ATP and the process consumes oxygen, while expelling water. :)
145055
Aerobic respiration requires oxygen in order to generate energy. It is the preferred method of pyruvate breakdown from glycolysis and requires that pyruvate enter the mitochondrion to be fully oxidized by the Krebs cycle. The product of this process is energy in the form of ATP (Adenosine Triphosphate), by substrate-level phosphorylation, NADH and FADH2. The reducing potential of NADH and FADH2 is converted to more ATP via an electron transport chain with oxygen as the "terminal electron acceptor". Most of the ATP produced by cellular respiration is by oxidative phosphorylation, ATP molecules are made due to the chemiosmotic potential driving ATP synthase. Respiration is the process by which cells obtain energy when oxygen is present in the cell.\n\nTheoretically, 36 ATP molecules can be made per glucose during cellular respiration, however, such conditions are generally not realized due to such losses as the cost of moving pyruvate into mitochondria. Aerobic metabolism is rather more efficient than anaerobic metabolism. They share the initial pathway of glycolysis but aerobic metabolism continues with the Krebs cycle and oxidative phosphorylation. The post glycolytic reactions take place in the mitochondria in eukaryotic cells, and at the cell membrane in prokaryotic cells.\n\nGlycolysis\nMain article: Glycolysis \nGlycolysis is a metabolic pathway that is found in all living organisms and does not require oxygen. The process converts one molecule of glucose into two molecules of pyruvate, and makes energy in the form of two net molecules of ATP. Four molecules of ATP per glucose are actually produced but two are consumed for the preparatory phase. The initial phosphorylation of glucose is required to destablise the molecule for cleavage into two triose sugars. During the pay-off phase of glycolysis four phosphate groups are transfered to ADP by substrate-level phosphorylation to make four ATP and two NADH are produced when the triose sugars are oxidised. Glycolysis takes place in the cytoplasm of the cell. The overall reaction can be expressed this way:\n\nGlucose + 2 ATP + 2 NAD+ + 2 Pi + 4 ADP → 2 pyruvate + 2 ADP + 2 NADH + 4 ATP + 2 H2O + 4 H+ \n\nOxidative decarboxylation\nMain article: Oxidative decarboxylation \nProduces acetyl-CoA from pyruvate. This oxidation reaction also releases carbon dioxide as a product.\n\nKrebs cycle/Citric Acid cycle\nMain article: Citric acid cycle \nWhen oxygen is present, acetyl-CoA enters the citric acid cycle, and gets oxidised to CO2 while at the same time reducing NAD to NADH. NADH can be used by the electron transport chain to create further ATP as part of oxidative phosphorylation. To fully oxidise the equivalent of one glucose molecule two acetyl-CoA must be metabolised by the Krebs cycle. Two waste products, H2O and CO2 are created during this cycle, .\n\nOxidative phosphorylation\nMain articles: Oxidative phosphorylation , Electron transport chain , Electrochemical gradient, and ATP synthase\n\nIn eukaryotes, oxidative phosphorylation occurs in the mitochondria. It comprises of the electron transport chain that establishes a proton gradient (chemiosmotic potential) across the inner membrane by oxidising the NADH produced from the Krebs cycle. ATP is synthesised by the ATP synthase enzyme when the chemiosmotic gradient is used to drive the phosphorylation of ADP.\n\nTheoretical yields\nThe yields in the table below are for one glucose and molecule being fully oxidised to carbon dioxide. It is assumed that all the reduced coenzymes are oxidised by the electron transport chain and used for oxidative phosphorylation.
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Aerobic glycolysis of glucose to pyruvate, requires two equivalents of ATP to activate the process, with the subsequent production of four equivalents of ATP and two equivalents of NADH. Thus, conversion of one mole of glucose to two moles of pyruvate is accompanied by the net production of two moles each of ATP and NADH. \n\nGlucose + 2 ADP + 2 NAD+ + 2 Pi -----> 2 Pyruvate + 2 ATP + 2 NADH + 2 H+\n\nThe NADH generated during glycolysis is used to fuel mitochondrial ATP synthesis via oxidative phosphorylation, producing either two or three equivalents of ATP depending upon whether the glycerol phosphate shuttle or the malate-aspartate shuttle is used to transport the electrons from cytoplasmic NADH into the mitochondria. The net yield from the oxidation of 1 mole of glucose to 2 moles of pyruvate is, therefore, either 6 or 8 moles of ATP. Complete oxidation of the 2 moles of pyruvate, through the TCA cycle, yeilds an additional 30 moles of ATP; the total yield, therefore being either 36 or 38 moles of ATP from the complete oxidation of 1 mole of glucose to CO2 and H2O. Got it?
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The answer is (D) simple sugars.  However, cells must break down glucose through cellular respiration (glycolysis or fermentation) to create ATP, which is the energy molecule used for cell processes.
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In glycolysis, glucose eventually becomes pyruvate. Glucose and pyruvate are small molecules. The production of pyruvate does not happen at once: glucose first has a phosphate molecule attached to it, then it's oxygen bonds get tweaked a bit, then another phosphate gets attached... After ten small alterations, we have two pyruvates (glucose gets split in half along the line). The pathway starts with glucose and ends with pyruvate, but after the first step, it is not just glucose anymore, it is glucose-6-phosphate. After the second step it is fructose-6-phosphate. These molecules that are not the start or the finish of a pathway are called intermediates.\n\nAll the intermediates are small molecules. Enzymes are not small molecules (relatively speaking). Enzymes are proteins, the smallest of which are still hundreds of times more massive than glucose, pyruvate, and the glycolysis intermediates. Enzymes serve very specific functions and the transformation of glucose into the first intermediate of glycolysis is controlled by an enzyme. The transformation of the first intermediate into the second is also controlled by an enzyme (a different one). Just about every molecular transformation occuring in any organism is controlled by an enzyme. The enzymes do not change. They just cause the molecular transformation of other molecules to occur much faster than they would naturally.