BIOCHEMISTRY
9th Edition
ISBN: 2818440090622
Author: BERG
Publisher: MAC HIGHER
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Chapter 15, Problem 4P
Interpretation Introduction
Interpretation:
The description of the ATP-ADP cycle and the role of this cycle in the biological system are to be stated.
Concept introduction:
The molecule which helps in the migration of energy produced during the breakdown of food to the other processes of cells is known adenosine triphosphate or ATP. ATP contains adenine as nitrogenous base, a ribose sugar and three phosphate groups.
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Fo-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.
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.
Chapter 15 Solutions
BIOCHEMISTRY
Ch. 15 - Prob. 1PCh. 15 - Prob. 2PCh. 15 - Prob. 3PCh. 15 - Prob. 4PCh. 15 - Prob. 5PCh. 15 - Prob. 6PCh. 15 - Prob. 7PCh. 15 - Prob. 8PCh. 15 - Prob. 9PCh. 15 - Prob. 10P
Ch. 15 - Prob. 11PCh. 15 - Prob. 12PCh. 15 - Prob. 13PCh. 15 - Prob. 14PCh. 15 - Prob. 15PCh. 15 - Prob. 16PCh. 15 - Prob. 17PCh. 15 - Prob. 18PCh. 15 - Prob. 19PCh. 15 - Prob. 20PCh. 15 - Prob. 21PCh. 15 - Prob. 22PCh. 15 - Prob. 23PCh. 15 - Prob. 24PCh. 15 - Prob. 25PCh. 15 - Prob. 26PCh. 15 - Prob. 27PCh. 15 - Prob. 28PCh. 15 - Prob. 29PCh. 15 - Prob. 30PCh. 15 - Prob. 31PCh. 15 - Prob. 32PCh. 15 - Prob. 33PCh. 15 - Prob. 34PCh. 15 - Prob. 35PCh. 15 - Prob. 36PCh. 15 - Prob. 37PCh. 15 - Prob. 38PCh. 15 - Prob. 39P
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- Life requires energy. In a short essay (100–150 words), describe the basic principles of bioenergetics in an animal cell. How is the flow and transformation of energy different in a photosynthesizing cell? Include the role of ATP and enzymes in your discussion.arrow_forwardWorksheet. Draw the predicted graph of O, consumption and ATP synthesis for the following experiment: 1. Add ADP+Pi 2. Add succinate 3. Add rotenone 4. Add DNP 5. Add cyanidearrow_forwardIDENTIFICATION. Cellular localization of the electron transport chain during cellular respiration. A lipid soluble vitamin that has a regulatory function in blood clotting. Energy that must increase and needed for the synthesis of glucose and other sugars in plants as well as the production of ATP from ADP.arrow_forward
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- BIOCHEMISTRY. Could glycerol be used to regenerate the OAA for maintenance of TCA cycle activity? Yes or No? Explain.arrow_forwardmolecule of ATP. O False O True The standard free energy of hydrolysis of ATP, AGo, is approximately-7300 cal/mol for each of the two terminal phosphate groups. True O Falsearrow_forwardThe last stop. The final electron acceptor for the electron-transport chain is which of the following? do a. 0202 b. Coenzyme Q с. СО2СО, d. NAD+NAD+arrow_forward
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