There could be multiple answers 1. Which of the following is true regarding the shuttle systems responsiblefor introducing NADH-associated electrons from glycolysis into themitochondria?the malate shuttle system introduces electrons through complexes I, III, and IV withinthe inner mitochondrial membrane.when the malate shuttle system is active, the total ATP output from the reducedcoenzymes consumed during oxidative phosphorylation is 32 ATP.the G-3-P shuttle system introduces electrons through complexes I and III, resultingin a reduced ATP output from the NADH associated with triose phosphatedehydrogenase.when the G-3-P shuttle system is active, the total ATP output from the reducedcoenzymes consumed during oxidative phosphorylation is 32 ATP.

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Description: There could be multiple answers 1. Which of the following is true regarding the shuttle systems responsiblefor introducing NADH-associated electrons from glycolysis into themitochondria?the malate shuttle system introduces electrons through complexes

The malate-aspartate shuttle system is a biochemical system that transports electrons from the…

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1. Which of the following is true regarding the shuttle systems responsible for introducing NADH-associated electrons from glycolysis into the mitochondria? the malate shuttle system introduces electrons through complexes I, III, and IV withi the inner mitochondrial membrane.

1. Which of the following is true regarding the shuttle systems responsible for introducing NADH-associated electrons from glycolysis into the mitochondria? the malate shuttle system introduces electrons through complexes I, III, and IV withi the inner mitochondrial membrane.

Biochemistry

6th Edition

ISBN:9781305577206

Author:Reginald H. Garrett, Charles M. Grisham

Publisher:Reginald H. Garrett, Charles M. Grisham

Chapter21: Photosynthesis

Section: Chapter Questions

Problem 5P: The Relative Efficiency of ATP Synthesis in Noncyclic versus Cyclic Photophosphorylation If...

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The Relative Efficiency of ATP Synthesis in Noncyclic versus Cyclic Photophosphorylation If noncyclic photosynthetic electron transport leads to the translocation of 7 H+/2e- and cyclic photosynthetic electron transport leads to the translocation of 2 H+/e-, what is the relative photosynthetic efficiency of ATP synthesis (expressed as the number of photons absorbed per ATP synthesized) for noncyclic versus cyclic photophosphorylation? (Assume that the CF1CF0-ATP synthase yields 3 ATP/14 H+.)
Match the term with the best description. _____ mitochondrial matrix a. needed for glycolysis _____ pyruvate b. inner space _____ NAD+ c. makes many ATP _____ mitochondrion d. product of glycolysis _____ NADH e. reduced coenzyme _____ anaerobic f. no oxygen required
1 a) What is meant by the ATP currency exchange ratio? Why does the oxidation of mitochondrial FADH2 generate one less ATP than oxidation of mitochondrial NADH? b) If 12 H+ are moved across the inner mitochondrial membrane by NADH oxidation, and each ATP synthesized requires 3 H+ to move through ATP synthase, why are only 3 ATP molecules produced by oxidation of each NADH?
Which of the following statements about oxidative phosphorylation is correct? O H+ ions are transferred from Complex I or Complex II to ATP synthase where ATP production occ O Proton pumps transfer electrons from the cytosol to the mitochondrial matrix as electrons are tra O The chemical and electrical gradient is established between the intermembrane space and the ma electron carriers. O ATP synthase pumps electrons back to the intermembrane space as a consequence of electrocher mitochondrial matrix. • Previous
In oxidative phosphorylation.... 1. Succinate contributes 2e- to Complex II and 2H+ to the mitochondrial proton gradient. 2. NADH in the matrix passes 2 e- to coenzyme Q via Complex I. 3. Complexes I, II, III, and IV each contribute to the matrix proton gradient. 4. O2 stabilizes the catalytically active conformation of Complex V. 5. Reversible protonation of c subunits leads to rotation of the Complex V gamma subunit. 6. Each β subunit can bind ATP tightly under the right conditions. 7. For every 3 protons that pass across the inner mitochondrial membrane, 1 ATP is produced. Choose all options that are true.
When the antibiotic X is added to actively respiring mitochondria, several things happen: the yield of ATP decreases, the rate of O2 consumption increases, heat is released, and the pH gradient across the inner mitochondrial membrane increases. Does X act as an uncoupler or an inhibitor of oxidative phosphorylation? Explain the experimental observations in terms of the antibiotic’s ability to transfer K+ ions across the inner mitochondrial membrane.
NADH produced in the glycolytic pathway cannot enter the mitochondrial membrane, so the shuttle systems are utilized to deliver the electrons to the ETC. Using a flowchart, illustrate and differentiate the flow of the electrons in the ETC when electrons from cytosolic NADH are delivered to the ETC via the two shuttle systems.
The primary purpose of the malate-aspartate shuttle is Choose one: To move electrons from NADH in the cytosol to the mitochondrial matrix, because the mitochondrial membrane is impermeable to NADH. To transport NADH from the cytosol to the mitochondrial matrix while pumping aspartate to the cytosol. To supply the mitochondria with aspartate, which can be used to generate ATP. To eliminate waste from the mitochondria.
In oxidative phosphorylation (mark all that are true)... Choice 1 of 7:Succinate contributes 2e- to Complex II and 2H+ to the mitochondrial proton gradient. Choice 2 of 7:NADH in the matrix passes 2 e- to coenzyme Q via Complex I. Choice 3 of 7:Complexes I, II, III, and IV each contribute to the matrix proton gradient. Choice 4 of 7:O2 stabilizes the catalytically active conformation of Complex V. Choice 5 of 7:Reversible protonation of c subunits leads to rotation of the Complex V gamma subunit. Choice 6 of 7:Each β subunit can bind ATP tightly under the right conditions. Choice 7 of 7:For every 3 protons that pass across the inner mitochondrial membrane, 1 ATP is produced. Below are screenshots of the answer from two different sources (for your consideration)
Assuming all the NADH+H+ and FADH2 are used for oxidative phosphorylation, how many net ATP are made from 1 molecule of glucose? (hint: don’t forget to also include substrate level phosphorylation)
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Draw the pathway for the conversion of Propionyl CoA to Succinyl CoA as it occurs in thematrix of the mitochondria. Show the structures and names of all reactants and products, as well asthe names of the enzymes. You do not need to draw the structures of ATP, NAD+, CoA, etc., but doshow them as reactants or products in the appropriate places. You do not need to show themechanisms of the enzymes. Draw the pathway for the conversion of Succinyl CoA into 4 CO2. Show the structures andnames of all reactants and products, as well as the names of the enzymes. You do not need to drawthe structures of ATP, NAD+, CoA, etc., but do show them as reactants or products in the appropriateplaces. You do not need to show the mechanisms of the enzymes. How many ATPs would be generated by the complete oxidation of Propionyl CoA into 3 CO2using any of the required enzymes of -oxidation, gluconeogenesis, glycolysis,the citric acid cycle andoxidative phosphorylation?