FIGURE 6.16 Glycolysis This pathway oxidizes glucose to pyruvate, generating ATP by substrate-level phosphorylation, reducing power in the form of NADH, and six different precursor metaboltes. 2 How many ATPS-total and net-are produced from breaking down one molecule of glucose in glycolysis? Glucose АТР ATP is used to add a phosphate group. ADP Glucose- 6-phosphate A chemical rearrangement occurs. Fructose- 6-phosphate АТР ATP is used to add a phosphate group. ADP Fructose- 1,6-bisphosphate The 6-carbon molecule is split into two 3-carbon molecules. Dihydroxyacetone phosphate A chemical rearrangement of one of the molecules occurs. Glyceraldehyde- 3-phosphate NAD NAD The addition of a phosphate group is coupled to a redox reaction, generating NADH and a high-energy phosphate bond. NADH + H* NADH + H* 1,3-Bisphospho- glycerate ADP ATP is produced by substrate-level phosphorylation. ATP 3-Phospho- glycerate A chemical rearrangement occurs. 2-Phospho- glycerate Water is removed, causing the phosphate bond to become high-energy. H.C H,0 Phospho- enolpyruvate ADP 10 ATP is produced by substrate-level ATP phosphorylation. Ругuvate

FIGURE 6.16 Glycolysis This pathway oxidizes glucose to pyruvate, generating ATP by substrate-level phosphorylation, reducing power in the form of NADH, and six different precursor metaboltes. 2 How many ATPS-total and net-are produced from breaking down one molecule of glucose in glycolysis? Glucose АТР ATP is used to add a phosphate group. ADP Glucose- 6-phosphate A chemical rearrangement occurs. Fructose- 6-phosphate АТР ATP is used to add a phosphate group. ADP Fructose- 1,6-bisphosphate The 6-carbon molecule is split into two 3-carbon molecules. Dihydroxyacetone phosphate A chemical rearrangement of one of the molecules occurs. Glyceraldehyde- 3-phosphate NAD NAD The addition of a phosphate group is coupled to a redox reaction, generating NADH and a high-energy phosphate bond. NADH + H* NADH + H* 1,3-Bisphospho- glycerate ADP ATP is produced by substrate-level phosphorylation. ATP 3-Phospho- glycerate A chemical rearrangement occurs. 2-Phospho- glycerate Water is removed, causing the phosphate bond to become high-energy. H.C H,0 Phospho- enolpyruvate ADP 10 ATP is produced by substrate-level ATP phosphorylation. Ругuvate

Biochemistry

6th Edition

ISBN:9781305577206

Author:Reginald H. Garrett, Charles M. Grisham

Publisher:Reginald H. Garrett, Charles M. Grisham

Chapter19: The Tricarboxylic Acid Cycle

Section: Chapter Questions

Problem 21P: Complete oxidation of a 16-carbon fatty acid can yield 129 molecules of ATP Study Figure 19.2 and...

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Complete oxidation of a 16-carbon fatty acid can yield 129 molecules of ATP Study Figure 19.2 and determine how many ATP molecules would be generated if a 16-carbon fatly acid were metabolized solely by the TCA cycle, in the form of S acetyl-CoA molecules.
A cell is grown on minimal media containing only 3-phosphoglyceric acid as a source of carbon and energy. What is the most likely place this compound would enter the metabolic cycle? Group of answer choices Glycolysis Conversion of Pyruvate to Acetyl-CoA The TCA Cycle The Electron Transport Chain
Which of the following statements is correct about oxidative pentose phosphate pathway? Group of answer choices It generates NADH It oxidizes NADPH to NADP+ The pathway supplies ribose 5-phosphate and NADPH in the quantities the cell requires Glucose 6-phosphatase catalyzes the rate-limiting reaction of the pathway
Break down the glycolysis pathway in terms of the following reaction steps NOTE: please include the diagram of chemical reaction and the enzyme involved - ATP-requiring steps - ATP-producing steps - NAD-involving steps, and -Irreversible steps
During glycolysis step 7, ATP synthesis occurs through ______. The energy for this reaction comes _____ oxidative phosphorylation; indirectly from oxidation of NADH/FADH2 Gaining of electron; Hydrolysis of ADP Reduction of Oxygen; Dissipation of proton gradient substrate level phosphorylation; coupling directly to an exergonic reaction.
Place the steps controling phosphofructokinase activity during glycolysis after ATP depletion. as: 1. 2. 3. 4. 5. 6. AMP binds to phosphofructokinase at an allosteric site. AMP levels rise. Phosphofructokinase changes from inactive to active 3D conformation. ATP levels in the cell rise. The rate-determining step of glycolysis proceeds at a lower activation energy. High level of metabolites from the citric acid cycle and oxidative phosophorylation cause feedback inhibition.
Break down the glycolysis pathway in terms of the following reaction steps (you may write or take photos of chemical reactions; be sure to include the enzyme involved): - ATP-requiring steps - ATP-producing steps - NAD-involving steps, and - Irreversible steps
Which of the following about glycolysis ARE/IS correct? (choose all that apply) a) During glycolysis, a Cys residue on an enzyme works as a nucleophile to attack a carbonyl group on a substrate. b) The net result of a single glycolysis run on one molecule of glucose creates two molecules of pyruvate and 2 ATP c) If you label C3 and C4 in glucose, after it is converted to lactate, you can't find any labeled carbons. please explain your answer(s)
Long explanations are NOT NEEDED. Answer only d and e. ATP accounting. Consider 1 molecule of the sucrose (monomeric units: glucose and fructose) that will undergo complete oxidation. -Number of pyruvate molecules after glycolysis is 4.-Net ATP produced in glycolysis only (via substrate-level phosphorylation) is 2.-Number of NADH produced using the pyruvate dehydrogenase complex reaction is 1. Now find:d. Number of NADH and FADH2 produced from Krebs cycle.e. Net ATP produced (complete oxidation via Malate aspartate shuttle).
In the conversion of glucose into two molecules of lactate, the NADH generated earlier in the pathway is oxidized to NAD +. Why is it not to the cell’s advantage to simply make more NAD+ so that the regeneration would not be necessary? After all, the cell would save much energy because it would no longer need to synthesize lactic acid dehydrogenase.
Glycolysis is often split up into three phases: 1. Energy Investment 2. Sugar Splitting and 3. Energy Payoff. After splitting the 6-carbon sugar, Fructose 1,6-biphosphate, 4 ATP are generated by substrate-level phosphorylation. What is substrate-level phosphorylation? A. ATP generated by chemiosmosis B. ATP generated by the direct transfer of a phosphate from an organic molecule to ADP C. ATP generated by the fermentation of alcohol D. Transfer of phosphates between glucose molecules E. All of the above
Glycolysis is a degradative pathway of glucose.(a). Name the three (3) reactions that occur spontaneously in glycolysis(b). Phosphofructokinase (PFK) is the primary regulatory point of glycolysis andis regulated by substrate cycling. Explain substrate cycling with regard toPFK.(c). What is kinase enzyme reactions and name the four (4) kinase enzymereactions in the glycolysis.