How many electrons are removed during the complete oxidation of ethanol to carbon dioxide and water Give the number of the compound in the glycolytic chart that would be expected to accumulate if a rat were exposed to a sub-lethal dose of arsenite The number of phosphorus atoms in a molecule of NADPH Give the number of the intermediate in the TCA cycle that would accumulate after fluoroacetate poisoning

How many electrons are removed during the complete oxidation of ethanol to carbon dioxide and water Give the number of the compound in the glycolytic chart that would be expected to accumulate if a rat were exposed to a sub-lethal dose of arsenite The number of phosphorus atoms in a molecule of NADPH Give the number of the intermediate in the TCA cycle that would accumulate after fluoroacetate poisoning

Biochemistry

6th Edition

ISBN:9781305577206

Author:Reginald H. Garrett, Charles M. Grisham

Publisher:Reginald H. Garrett, Charles M. Grisham

Chapter20: Electron Transport And Oxidative Phosphorylation

Section: Chapter Questions

Problem 7P

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Lactate fermentation is similar to and different from ethanol fermentation Match the following statements converts pyruvate to lactateconverts a 2-carbon molecule to ethanolinvolved in the production of pyruvate from glucose via glycolysis, and both result in the oxidation of NADH to NAD+involved in the production of glucose via glycolysis, and both result in the oxidation of NADH to NAD+converts a 2-carbon molecule to lactate occurs under anaerobic conditionsconverts pyruvate to carbon dioxideoccurs under aerobic conditions1 Lactate fermentation2 Ethanol fermentation3 Both lactate and ethanol fermentation3 Both lactate and ethanol fermentation4 Does not occur
Some cofactors that participate in the reactions of the citric acid cycle are indicated by letters. Identify the position of positions of NADH in the cycle by selecting the appropriate letter or letters designating its position(s) in the cycle diagram. COA CH, HO--Co, CH čo, 8 CO но-сн CH HC -Co, CO HO-CH LA Citric acid cycle H,0 co, -B COA | 4 Co, čo D.
1. Identify the oxidized coenzyme (letter abbreviation only) that participates in this reaction of the Kreb’s cycle. Succinate --> Fumarate 2. How many mol of NADH can be obtained upon the beta oxidation of stearic acid? 3. How many mol of ATP can be obtained upon the complete oxidation of 1 mol stearic acid? 4. How many steps in glycolysis in which ATO is converted to ADP?
One of the steps in psilocybin biosynthesis is the phosphorylation of 4-hydroxytryptamine By the enzyme Psik as shown below, that involves the hydrolysis of ATP. NH₂ OH HO Psik HO of A& ADP 4-hydroxytryptamine ATP norbaeocystin The standard free energy changes for each reaction is shown in the Table below. J reaction 4-hydroxytryptamine + P₁ → norbaeocystin ATP → ADP+ Pi (b) What is the equilibrium constant at 37 °C? AG 27.7 kJ/mol -32.2 kJ/mol (a) Write the net reaction. What is the standard free energy change for the net reaction? (c) In the cell, the concentration of ATP is 3.1 mM, the concentration of P; Is 5.90 mM, and the Concentration of ADP is 220 μM. What will AG Be if the concentration of norbaeocystin Is always kept at 1/100 of the concentration of 4-hydroxytryptamine?
full oxidation of 2 moles of glucose produce 36ATP O 72ATP 48ATP O 106ATP O
The Citric Acid Cycle results in (Choose all that apply) net oxidation of acetyl CoA carbons to two CO2 O three NAD to NADH reductions involving 6 electrons one FADH2 to FAD oxidation involving 2 electrons three NADH to NAD oxidations involving 6 electrons O one FAD to FADH, reduction involving 2 electrons O a substrate level phosphorylation
Oxidative phosphorylation photosynthesis Krebs cycle glycolysis Match the term or terms to the description that best describes it. Yields pyruvate for use in the Krebs [Choose ] cycle Involves succinate, citrate, and [Choose] fumarate Requires cytochromes for electron [ Choose] transport Requires energy from light to take place [Choose] Ends with acceptance of electrons by [ Choose ] oxygen atoms Results in the formation of glucose [ [ Choose ] Uses chlorophyll as the pigment in the [ Choose] cyanobacteria Results in the formation of water [ Choose ]
Citrate synthase is inhibited by: NAD+ ADP NADH oxleoacetate All of the above None of the above
Below is an image of the Krebs cycle: acetyl-CoA oxaloacetate COASH H20 NADH NAD* H20 malate citrate fumarate isocitrate FADH2 NAD* CO2 FAD АТР NADH + ADP succinate GTP NAD+ a-ketoglutarate H20 GDP NADH + CO2 COASH succinyl CoA COASH Consider the conversion of succinate to fumarate, which is coupled with the production the electron carrier FADH2. If this reaction was NOT coupled with the production of FADH2 (and only catalyzed the conversion of succinate to fumarate), how would this impact ATP production through cell respiration? OATP production would stop because no high energy electron carriers would be produced ATP production would still occur, but there would be a much lower ATP yield because a large number of electron carriers are no longer being made ATP production would stop because without FADH2 we will no longer have electrons moving through the electron transport chain ATP production would still occur, but there would be a slightly lower ATP yield because a small number of…
Which of the following cofactors is required for the conversion of succinate to fumarate in the citr acid cycle? O ATP O Biotin OFAD O NAD+ O NADP+2
Which of the following events does not occur during Krebs Cycle? Citrate synthase catalyzers the transfer of an acetyl group from acetyl coenzyme A to oxaloacetate to form citrate. Isocitrate dehydrogenase converts citrate to its isomer isocitrate. A carbon dioxide is released when alpha-ketoglutarate is oxidized to succinyl coenzyme A. The energy released from the conversion of succinyl coenzyme A to succinate is used to transfer a phosphate group to ADP to form ATP. During Krebs Cycle, succinate is oxidized to fumarate which is coupled to the reduction of FAD to FADH2. During electron transport, the electrons from FADH2 are transferred to coenzyme Q. Which of the following catalyzes these reactions? NADH dehydrogenase Succinate dehydrogenase FADH2 hydrogenase NADH hydrogenase reductase
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? O Glycolysis O Conversion of Pyruvate to Acetyl-CoA O The TCA Cycle The Electron Transport Chain