Oxidative decarboxylations— involve loss of CO2 and the production of NADH. do not occur in the TCA cycle. involve loss of CO2 and the production of NAD. occur three times in the TCA cycle. involve loss of CO2 and the production of FADH2.
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Oxidative decarboxylations—
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involve loss of CO2 and the production of NADH. |
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do not occur in the TCA cycle. |
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involve loss of CO2 and the production of NAD. |
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occur three times in the TCA cycle. |
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involve loss of CO2 and the production of FADH2. |
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- Lactate dehydrogenase (LDH) plays an essential role in an exercising muscle, especially when the level of excursion surpasses the ability of circulatory systems ability to supply adequate oxygen. What is the main reason LDH is so important to the muscle under these conditions? It produces one mole of ATP via substrate level phosphorylation. It resupplies NAD+ to glyceraldehyde 3-phosphate dehydrogenase. It decreases pH thus decreasing the dissociation rate of oxygen from hemoglobin It produces NADH for energy while converting pyruvate into lactate. It removes excess lactic acid from the muscle to create pyruvate. NextVigorous exercises pave to: * a decreased NADH/NAD+ ratio. all of the above a decreased concentration of AMP. decreased levels of fructose 2,6- bisphosphate. increased oxidation of pyruvate to CO2 and water. an increased conversion of pyruvate to lactate.Which of the following is NOT produced during the oxidative phase of the pentose phosphate shunt? a Ribulose-5-Phosphate b Glyceraldehyde-3-phosphate c CO2 d NADPH
- Citrate synthase is inhibited by: NAD+ ADP NADH oxleoacetate All of the above None of the abovePlace the following statements in order to reflect the correct movement of hydrogen ions during aerobic respiration. Drag and drop options into correct order and submit. For keyboard navigation... SHOW MORE V Pumped across the inner mitochondrial membrane by the action of the electron transport chain. Cross the inner mitochondrial membrane through ATP Synthase. Carried across the mitochondrial outer membrane as part of NADH. Released into the mitochondrial matrix from NADH oxidation. Transferred from glucose to NAD+. during the production of pyruvate. II II II II IIKrebs cycle products/acetyl CoA molecule are 4 CO2, 3 NADH, 1 FADH2, 2 ATP 4 CO2, 6 NADH, 2 FADH2, 2 ATP 2 CO2, 3 NADH, 1 FADH2, 1 ATP 6 CO2, 6 NADH, 2 FADH2, 4 ATP
- Select all false statements about pentose phosphate pathway. Glucose-6-phosphate is common to glycolysis and the pentose phosphate pathway. The pentose phosphate pathway contributes to nucleotide synthesis. NADP* is oxidized to NADPH in the pathway. Oxidative phase of pentose phosphate pathway recycles pentose phosphates to glucose 6-phosphate. Products of the pentose phosphate pathway contribute to reductive biosynthesis reactions. NADH formed in pentose phosphate pathway is used for production of ATP during oxidative phosphorylation.Which of the following is higher during high levels of glutathione reductase and NADP? SH A но (GSH) OH NH2 NH2 HO OH ;-CH-CH2-CH2-C-NH-CH–ċ–NH–CH2- CH2 В (GSSG) CH2 -CH-CH;-CH2=C-NH–C NH-CH–Ç-NH-CH2-C HO OH NH2One major side effect of the herbal supplement can be hot flashes and increased persperiation due to increased thermogenesis, what is the likely cause of the heat production? Increasing the activity of phosphfructokinase-1. Increasing the activity of the pyruvate dehydrogenase complex. Increasing the activity of citrate synthase. Increasing the activity of uncoupling proteins.
- The lactate dehydrogenase gene codes for the enzyme that converts pyruvate to lactic acid. If cells in a lab culture are unable to undergo fermentation because of a mutation that blocks activity of the lactate dehydrogenase gene, and those cells are placed in anoxic conditions, which treatment should allow the cells to survive without oxygen? microinjection of the cells with NAD+ microinjection of the cells with NADH adding more glucose to the culture medium microinjection of the cells with NADH:Acetyl CoA produced from pyruvate occurs in the cytosol. not depends on the coenzyme biotin. is activated when pyruvate dehydrogenase (PDH, E1) of the pyruvate dehydrogenase complex is phosphorylated by PDH kinase in the presence of ATP. involves the participation of lipoic acid. all of the above is reversible.In the presence of O₂ and low energy status of the cell, acetyl CoA is oxidized to oxygen lactate carbon dioxide ethanol O NADH