Biochemistry
6th Edition
ISBN: 9781305577206
Author: Reginald H. Garrett, Charles M. Grisham
Publisher: Cengage Learning
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Chapter 21, Problem 4P
Interpretation Introduction
To propose:
For Q cycle balanced equation is written as the catalyst by the chloroplast cytochrome complex.
Introduction:
Q cycle is defined as the reaction that happens in the series which describes the sequential reduction and oxidation of the Q 10 coenzyme that takes place between forms of ubiquinol and ubiquinone. This enhances the proton movement across the bilayer lipid.
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Chapter 21 Solutions
Biochemistry
Ch. 21 - P700* Has the Most Negative Standard Reduction...Ch. 21 - Prob. 2PCh. 21 - Prob. 3PCh. 21 - Prob. 4PCh. 21 - The Relative Efficiency of ATP Synthesis in...Ch. 21 - pH and in the Chloroplast Proton-Motive Force...Ch. 21 - Prob. 7PCh. 21 - Prob. 8PCh. 21 - Prob. 9PCh. 21 - Prob. 10P
Ch. 21 - Tracing the Fate of CO2 During Photosynthesis...Ch. 21 - Prob. 12PCh. 21 - Prob. 13PCh. 21 - The Source of the Oxygen Atoms in Photosynthetic...Ch. 21 - Prob. 15PCh. 21 - Prob. 16PCh. 21 - Prob. 17PCh. 21 - The Overall Free Energy Change for Photosynthetic...Ch. 21 - Prob. 19PCh. 21 - Prob. 20PCh. 21 - Prob. 21P
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- Describe the flow of electrons through photosystems I and II in the noncyclic electron transport pathway and the products produced. Contrast this flow with cyclic electron transport.arrow_forwardDescribe the pathway of electi on transfer from photosystem II to photosystem I in light-dependent reactions.arrow_forwardWhich of the following statements about the light reactions of photosynthesis are correct? 1. Absorption of light does one thing: it makes chlorophyll easier to oxidize. 2. In PSII, the rate of damage to the D1 protein can never exceeds the rate of repair. 3. Electron transport is spontaneous (exergonic) as electrons move from P680* to P700+. 4. Compared to anoxygenic photosynthesis, in oxygenic photosynthesis less light needs to be absorbed to reduce NADP+. A. 1,2 and 3 B. 1 and 3 C. 2 and 4 D. 4 only E. All of 1,2,3 and 4 are correctarrow_forward
- During photosynthesis where does the primary electrons come from that enter photosystems II? What is the purpose of the electron transport chain in the thylakoid? Why do the light reactions create ATP NADPH?arrow_forwardDescribes the C4 pathway. Write a 1-2 paragraph narrative discussing, in general, the purpose and steps involved in the pathway. What advantages does this pathway provide for the plant?arrow_forwardThe light reactions of photosynthesis take place in the thylakoid disk the outer membrane of the chloroplast the stroma of the chloroplast cytoplasm of the host cellarrow_forward
- Why can photosynthesis be generally considered as a redox process? 3-6 snetencesarrow_forwardxygen Production Your experimental team has gathered data on the rate of a plant's photosynthesis, measured by oxygen production, as the light intensity was increased. The graph below was created from your gathered data. Note: Diagram 4 may also be helpful in answering the questions. Use the information in order to answer questions #28 -31. Diagram 7: Rate of Photosynthesis with increasing light intensity 200 - Pmax 150 - 100 - 50 50- -100 100 200 300 400 500 600 700 Light Intensity (arbitrary units) Glossary: 1. Pmax: The maximum pressure of oxygen gas. 2. Arbitrary units: The use of this term mean the graph is not using specific units as labels. Light intensity could be measured in lumens and oxygen production could have been measured in mm of Hg Select the best explanation for the oxgen production leveling off as the light increases in intensity. More light reduces the activity of the chlorophyll by breaking the pigment down. More light prevents water from getting to the leaf cells…arrow_forwardExplain why both starch synthesis and the activity of the Triose-P Phosphate translocator serve to maintain the ability of the chloroplast to maintain high photosynthetic rates.arrow_forward
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Photosynthesis & Respiration | Reactions | Chemistry | FuseSchool; Author: FuseSchool - Global Education;https://www.youtube.com/watch?v=3XIyweZg6Sw;License: Standard YouTube License, CC-BY