Biochemistry
9th Edition
ISBN: 9781305961135
Author: Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal
Publisher: Cengage Learning
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Chapter 22, Problem 8RE
Interpretation Introduction
Interpretation:
The statement, “The synthesis of NADPH in chloroplasts is merely the reverse of NADH oxidation in mitochondria,” is to be explained.
Concept introduction:
Photosynthesis occurs in the presence of light. Water is converted to oxygen by oxidation and
The mitochondria
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Biochemistry
Ch. 22 - Prob. 1RECh. 22 - RECALL The bean sprouts available at the grocery...Ch. 22 - Prob. 3RECh. 22 - RECALL How is the structure of chloroplasts...Ch. 22 - Prob. 5RECh. 22 - Prob. 6RECh. 22 - Prob. 7RECh. 22 - Prob. 8RECh. 22 - Prob. 9RECh. 22 - Prob. 10RE
Ch. 22 - Prob. 11RECh. 22 - Prob. 12RECh. 22 - Prob. 13RECh. 22 - Prob. 14RECh. 22 - Prob. 15RECh. 22 - REFLECT AND APPLY Albert Szent-Gyorgi, a pioneer...Ch. 22 - Prob. 17RECh. 22 - Prob. 18RECh. 22 - Prob. 19RECh. 22 - Prob. 20RECh. 22 - Prob. 21RECh. 22 - Prob. 22RECh. 22 - Prob. 23RECh. 22 - Prob. 24RECh. 22 - Prob. 25RECh. 22 - Prob. 26RECh. 22 - RECALL In cyclic photophosphorylation in...Ch. 22 - Prob. 28RECh. 22 - Prob. 29RECh. 22 - Prob. 30RECh. 22 - Prob. 31RECh. 22 - Prob. 32RECh. 22 - Prob. 33RECh. 22 - Prob. 34RECh. 22 - Prob. 35RECh. 22 - Prob. 36RECh. 22 - Prob. 37RECh. 22 - REFLECT AND APPLY If photosynthesizing plants are...Ch. 22 - Prob. 39RECh. 22 - Prob. 40RECh. 22 - Prob. 41RECh. 22 - Prob. 42RECh. 22 - Prob. 43RECh. 22 - Prob. 44RECh. 22 - Prob. 45RECh. 22 - Prob. 46RECh. 22 - RECALL How does photosynthesis in C4 plants differ...Ch. 22 - Prob. 48RECh. 22 - Prob. 49RECh. 22 - Prob. 50RE
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- REFLECT AND APPLY The malate-aspartate shuttle yields about 2.5 moles of ATP for each mole of cytosolic NADH. Why does nature use the glycerol-phosphate shuttle, which yields only about 1.5 moles of ATP?arrow_forwardREFLECT AND APPLY Would you expect the production of sugars by plants in photosynthesis to be an exergonic or endergonic process? Give the reason for your answer.arrow_forwardRECALL Is the conversion of fumarate to malate a redox (electron transfer) reaction? Give the reason for your answer.arrow_forward
- REFLECT AND APPLY Explain how the pentose phosphate path- way can respond to a cells need for ATP, NADPH, and ribose-5- phosphate.arrow_forwardREFLECT AND APPLY A model is proposed to explain the reaction catalyzed by an enzyme. Experimentally obtained rate data fit the model to within experimental error. Do these findings prove the model?arrow_forwardRECALL Which of the following are spontaneous processes? Explain your answer for each process. (a) The hydrolysis of ATP to ADP and Pi Pi (b) The oxidation of glucose to CO2 and H2O by an organism (c) The phosphorylation of ADP to ATP (d) The production of glucose and O2 from CO2 and H2O in photosynthesisarrow_forward
- REFLECT AND APPLY Suggest a reason why a different reducing agent (NADPH) is used in anabolic reactions rather than NADH, which plays a role in catabolic ones.arrow_forwardREFLECT AND APPLY Explain how glycogen phosphorylase is controlled allosterically and by covalent modification.arrow_forwardREFLECT AND APPLY What is the approximate P/O ratio that can be expected if intact mitochondria are incubated in the presence of oxygen, along with added succinate?arrow_forward
- REFLECT AND APPLY Why is it useful to plot rate data for enzymatic reactions as a straight line rather than as a curve?arrow_forwardREFLECT AND APPLY In biochemistry, the exergonic process of converting glucose and oxygen to carbon dioxide and water in aerobic metabolism can be considered the reverse of photosynthesis, in which carbon dioxide and water are converted to glucose and oxygen. Do you expect both processes to be exergonic, both endergonic, or one exergonic and one endergonic? Why? Would you expect both processes to take place in the same way? Why?arrow_forwardREFLECT AND APPLLY Show, by a series of equations, the energetics of phosphorylation of ADP by phosphoenolpyruvate.arrow_forward
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