Answered: What is midpoint potential of redox…

What is midpoint potential of redox active centers in photosynthetic organisms? What factors affect this? Also how does charge become offset during water oxidation rxns?.

Biochemistry

6th Edition

ISBN:9781305577206

Author:Reginald H. Garrett, Charles M. Grisham

Publisher:Reginald H. Garrett, Charles M. Grisham

Chapter21: Photosynthesis

Section: Chapter Questions

Problem 21P

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Concept explainers

Photosynthesis

Plants have a capacity that we humans can only imagine— the ability to produce food from sunlight. Sure, we can prepare some dishes that we can savor on, but it become possible because of the plants (as they serve as a producers of all the raw materials required). Photosynthesis is the method of assembling carbohydrates with the aid of sunlight.

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What is midpoint potential of redox active centers in photosynthetic organisms? What factors affect this?

Also how does charge become offset during water oxidation rxns?.

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Cyclic photophosphorylation uses two photons to generate one ATP. If the AG of ATP hydrolysis is -50 kj/mol. What is the percent efficiency of cyclic photophosphorylation? F =96.5 kj/mol*V. Use c AG = -nFAV ⒸShow Transcribed Text to solve.
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In cyclic photophosphorylation, it is estimated that two electrons must be passed through the cycle to pump enough protons to generate one ATP. Assuming that the ΔG for hydrolysis of ATP under conditions existing in the chloroplast is about -50 kJ/mol, what is the corresponding percent efficiency of cyclic photophosphorylation, using light of 700 nm?
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