Biochemistry
9th Edition
ISBN: 9781319114671
Author: Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher: W. H. Freeman
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The conversion of 1 mol of fructose 1,6-bisphosphate to 2 mol of pyruvate by the glycolytic pathway results in a net formation of:
a. 1 mol of NAD+ and 2 mol of ATP.
b. 1 mol of NADH and 1 mol of ATP.
c. 2 mol of NAD+ and 4 mol of ATP.
d. 2 mol of NADH and 2 mol of ATP.
e. 2 mol of NADH and 4 mol of ATP.
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- An essential characteristic of the malate-aspartate electron shuttle is that? A. it is a NADH/aspartate antiport located in the inner mitochondrial membrane B. it involves a malate dehydrogenase embedded in the mitochondrial inner membrane C. it shuttles the electrons from NADH across the mitochondrial membrane to allow NADH formation inside the mitochondrial matrix D. glycerol-3-phosphate is a key component of this shuttle processarrow_forwardImagine a scenario in which a cell has no oxygen and pyruvate is absent, and therefore, NADH can't transfer hydrogens back to pyruvate. What will happen to glycolysis? Explain your answer.arrow_forwardThe end products of glycolysis are O A. pyruvate. B. pyruvate, ATP, and NAD*. C. acetyl CoA, ATP, and NADH. D. pyruvate, ATP, and NADH.. E. acetyl CoA, ATP, and NAD*.arrow_forward
- Which of the following statements is true? A. The NADH dehydrogenase complex can pump more protons than can the cytochrome b-c1 complex. B. The pH in the mitochondrial matrix is higher than the pH in the intermembrane space. C. The proton concentration gradient and the membrane potential across the inner mitochondrial membrane tend to work against each other in driving protons from the intermembrane space into the matrix. D. The difference in proton concentration across the inner mitochondrial membrane has a much larger effect than the membrane potential on the total proton-motive force.arrow_forwardThe first roadblock to overcome in the synthesis of glucose from pyruvate is which of the following reactions? a. Fructose 6-P to Fructose 1,6-bis-P b. Pyruvate to Oxaloacetate c. Pyruvate to Phosphoenolpyruvate d. Phosphoenolpyruvate to Pyruvatearrow_forwardWhat will be the net product of the complete degradation of one glycerol molecule to carbon dioxide and water? (Consider GTP equivalent to ATP) A. 6 NADH, 1 FADH2, 2 ATP B. 4 NADH, 1 FADH2, 2 ATP C. 5 NADH, 1 FADH2, 3 ATP D. 4 NADH, 1 FADH2, 2 ATP E. 4 NADH, 1 FADH2, 1 ATParrow_forward
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