Biochemistry
8th Edition
ISBN: 9781464126109
Author: Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr., Lubert Stryer
Publisher: W. H. Freeman
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Question
Chapter 10, Problem 4P
Interpretation Introduction
Interpretation:
The meaning of the biochemical rationale for ATP serving as a positive regulator of ATCase is to be stated.
Concept introduction:
Enzymes being the catalysts increase the
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Just obeying the laws. Why do isolated F1F1 subunits of ATP synthase
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consequence of this difference?
Between two extremes. What is the role of a thioester in the formation of ATP in glycolysis?
Chapter 10 Solutions
Biochemistry
Ch. 10 - Prob. 1PCh. 10 - Prob. 2PCh. 10 - Prob. 3PCh. 10 - Prob. 4PCh. 10 - Prob. 5PCh. 10 - Prob. 6PCh. 10 - Prob. 7PCh. 10 - Prob. 8PCh. 10 - Prob. 9PCh. 10 - Prob. 10P
Ch. 10 - Prob. 11PCh. 10 - Prob. 12PCh. 10 - Prob. 13PCh. 10 - Prob. 14PCh. 10 - Prob. 15PCh. 10 - Prob. 16PCh. 10 - Prob. 17PCh. 10 - Prob. 18PCh. 10 - Prob. 19PCh. 10 - Prob. 20PCh. 10 - Prob. 21PCh. 10 - Prob. 22PCh. 10 - Prob. 23PCh. 10 - Prob. 24PCh. 10 - Prob. 25PCh. 10 - Prob. 26PCh. 10 - Prob. 27PCh. 10 - Prob. 28PCh. 10 - Prob. 29PCh. 10 - Prob. 30PCh. 10 - Prob. 31PCh. 10 - Prob. 32PCh. 10 - Prob. 33PCh. 10 - Prob. 34PCh. 10 - Prob. 35PCh. 10 - Prob. 36PCh. 10 - Prob. 37PCh. 10 - Prob. 38PCh. 10 - Prob. 39PCh. 10 - Prob. 40PCh. 10 - Prob. 41P
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- Reductive power. What ratio of NADPH to NADP+ is required to sustain [GSH] = 10 mM and [GSSG] = 1 mM ? Use the redox potentials given in Table 18.1 .arrow_forwardFo-F1 ATPase. The energy for ATP synthesis from ADP and Pi is provided by the downhill transport of protons through the rotary FoF1 ATP synthase . The enzyme has 3 alpha-beta and 12 ‘c’ subunits. The mitochondrion maintains change in membrane potential=180 mV (negative inside), pHin = 8, pHout=7, [Pi] = 3 mM and ADP is present as well. . What [ATP]/[ADP] ratio will be established at steady-state under these conditions? What would be the [ATP]/[ADP] ratio if the enzyme had only 9 ‘c’ subunits? full revolution of the crank (gamma subunit) produces 3 ATP.arrow_forwardLess energetic electrons. Why are electrons carried by FADH 2 not as energy rich as those carried by NADH? What is the consequence of this difference?arrow_forward
- High potential. What is the equilibrium ratio of phosphoenolpyruvate to pyruvate under standard conditions when [ATP ]/[ ADP ]=10? [ATP]/[ADP] = 10?arrow_forwardATP yield. Each of the following molecules is processed by glycolysis to lactate. How much ATP is generated from each molecule?arrow_forwardAtp bookkeeping. Explain where the number of 38 and 32 atp per glucose molecules comes fromarrow_forward
- No free lunch. Explain why maintaining a high concentration of CO2 CO2 in the bundle-sheath cells of C4C4 plants is an example of active transport. How much ATP is required per CO2CO2 to maintain a high concentration of CO2CO2 in the bundle-sheath cells of C4C4 plants?arrow_forwardPernicious anemia. Purine biosynthesis is impaired by vitamin B12 B12 deficiency. Why? How might fatty acid and amino acid metabolism also be affected bya vitamin B12B12 deficiency?arrow_forwardFo-F1 ATPase. The energy for ATP synthesis from ADP and Pi is provided by the downhill transport of protons through the rotary FoF1 ATP synthase (lecture 22). The enzyme has 3 a-b and 12 ‘c’ subunits. The mitochondrion maintains Df=180 mV (negative inside), pHin = 8, pHout=7, [Pi] = 3 mM and ADP is present as well. How much energy is available (from the proton electrochemical gradient) for ATP synthesis under these conditions (in kJ/mol)? What [ATP]/[ADP] ratio will be established at steady-state under these conditions? What would be the [ATP]/[ADP] ratio if the enzyme had only 9 ‘c’ subunits? Remember that full revolution of the crank (gamma subunit) produces 3 ATP.arrow_forward
- Need help ASAP. Describe the steps by which the F0 portion of the ATP synthase harnesses the proton-motive force to help synthesize ATP. What would you expect to observe if the proton gradient were reversed? Explain your answer.arrow_forwardBIOCHEMISTRY. Could glycerol be used to regenerate the OAA for maintenance of TCA cycle activity? Yes or No? Explain.arrow_forwardRequired partner. Aminotransferases require which of the following cofactors: a. NAD+/NADP+NAD+/NADP+ b. Pyridoxal phosphate c. Thiamine pyrophosphate d. Biopterinarrow_forward
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