In a liver cell, if a single molecule of glucose undergoes glycolysis
In a liver cell, if a single molecule of glucose undergoes glycolysis, and the citrate cycle completes along with the electron transport chain, how many net ATP molecules are produced based on the chemical potential energy contained in the glucose substrate?
Assume that no other pathways were involved.
Homework Answers
32 ATP - In glycolysis preparatory phase 2 ATP is spent by phosphorylation of glucose and fructose 6-phosphate. In glycolysis pay-off phase, 4 ATP is gained by substrate-level phosphorylation, and 3 or 5 ATP is gained from oxidative phosphorylation of 2 NADH. In oxidative decarboxylation of pyruvate 5 ATP is formed by oxidative phosphorylation of 2NADH. In citric acid cycle 6 NADH and 2 FADH2 are produced. 15 ATP is formed by oxidative phosphorylation from 6 NADH and 3 ATP from oxidative phosphorylation 2 FADH2 in electron transport chain. So in total the 30 - 32 ATP is formed at the end of electron transport chain.
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In a liver cell, if a single molecule of glucose undergoes glycolysis
tospan Student Name: Grader Name Instruction: Starting with a single glucose in a yeast cell, please...
tospan Student Name: Grader Name Instruction: Starting with a single glucose in a yeast cell, please fill in the following table according to what happened during aerobic cellular respiration or fermentation. Make sure that you includes proper numbers of each chemical used or produced from a single glucose molecule 02 Chemicals Used or Produced FAD+/FADH2 NADP+/NADPH X х CO2 Location Cytoplasm H2O Starting Ending ADP/ATP NAD+/NADH 1 Glucose 2 Pyruvate 2ATPs->4ATP 2 NAD+->2NADH х х Pathways Glycolysis Transition Step (Connecting...
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14. During starvation, the only tissue that completely oxidizes glucose is a. The red blood cell...
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During the aerobic metabolism of glucose, glucose is ____________. Reduced to form water Oxidized to form...
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tospan Student Name: Grader Name Instruction: Starting with a single glucose in a yeast cell, please fill in the following table according to what happened during aerobic cellular respiration or fermentation. Make sure that you includes proper numbers of each chemical used or produced from a single glucose molecule 02 Chemicals Used or Produced FAD+/FADH2 NADP+/NADPH X х CO2 Location Cytoplasm H2O Starting Ending ADP/ATP NAD+/NADH 1 Glucose 2 Pyruvate 2ATPs->4ATP 2 NAD+->2NADH х х Pathways Glycolysis Transition Step (Connecting...
3. True or False [ ] In glycolysis, a single glucose molecule breaks down into two molecules of pyruvate, which can then be broken down further to release ATP. Glycolysis itself releases four net molecules of ATP per molecule of glucose. [ ] The main products in glycolysis include ATP, pyruvate and NADPH. [ ] In the preparatory phase of glycolysis, ATP is invested to convert glucose to fructose 1,6-bisphosphate. The bond between C-2 and C-3 is then broken to...
4. Trace the fate of hydrogens removed from glucose during glycolysis when oxygen is present in muscle cells; compare this to the fate of hydrogens removed from glucose when the amount of available oxygen is insufficient to support aerobic respiration. 5. Why is each of the following essential to chemiosmotic ATP synthesis? (a) electron transport chain (b) proton gradient (c) ATP synthase complex? 6. Sum up how much energy (as ATP) is made available to the cell from a single...
13) When a molecule of glucose gets split during the energy investment phase of glycolysis, the products are two molecules of that then move to the energy payoff phase. A) Glyceraldehyde-3-phospahte B) Pyruvate C) Acetyl-COA D) NADH 14) Following glycolysis and the citric acid cycle, but before the electron transport chain and oxidative phosphorylation, the carbon skeleton of glucose has been broken down to CO2 with some net gain of ATP. Most of the energy from the original glucose molecule...
10. What is the relationship between anabolic and catabolic pathways? A. Anabolic pathways create complex molecules using the energy from catabolic pathways. B. Anabolic and catabolic pathways are interchangeable. C. Catabolic pathways create complex molecules using the energy from Anabolic pathways. D. Molecules broken down by anabolic pathways provides energy for catabolic pathways. Cellular respiration 11. Which of the following statements about NAD+ is true? A) NAD+ is reduced to NADH during glycolysis, pyruvate oxidation, and the citric acid cycle....
PRE-KREBS/TRANSITION PHASE: In the absence of oxygen the luyunde molecules from glycolysis are converted to lactic acid. If oxygen is present, they are instead converted into 2 molecules of _which then enter the mitochondria to undergo anaerob metabolism. During this transition phase, no ATP is produced but are released. and Mitochoadrial CITRIC ACID CYCLE: The citric acid cycle occurs in the matrix Both of the molecules of Adel produced after glycolysis run through the citric acid cycle reactions. At the...
84) The end product of glycolysis: a) is a three carbon molecule b) is pyruvate c) is a metabolite of glucose d) a and b e) all of the above 85) Glycolysis is an example of: a) anabolism b) catabolism c) reproduction d) hydrolysis e) all of the above 86) Pyruvate is metabolized to enter the a) tricarboxylic acid cycle b) glycolysis e) electron transport chain d) nucleus e) DNA synthesis 87) In bacteria, the electron transport chain is found:...
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