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A Laboratory Simulation for Coupled Cycles of Photosynthesis and Respiration

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Silke Korn and Michael W. Tausch

Institut für Synthesechemie, Universität Duisburg, D-47057 Duisburg, Germany

J. Chem. Educ., 2001, 78 (9), p 1238

DOI: 10.1021/ed078p1238

Publication Date (Web): September 1, 2001

Section:

History, Education, and Documentation

Abstract

A laboratory experiment simulating the basic steps of the coupled cycles of photosynthesis and respiration has been developed. It may be applied in several versions depending on the availability of lab equipment and the chemistry education level of the students. This Photo-Blue-Bottle experiment demonstrates the light-driven reduction of a substrate and its reoxidation to release the stored energy. As in the natural processes, a visible-light-absorbing photocatalyst initiates the photoreduction and oxygen from the air is used for reoxidation of the substrate. The cyclic processes are visualized as color changes (yellow-blue-yellow) and as changes of the electrochemical potential.

Keywords (Audience):

Upper-Division Undergraduate

Keywords (Domain):

Demonstrations

Keywords (Pedagogy):

Hands-On Learning / Manipulatives

Keywords (Subject):

Catalysis

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Received: August 03, 2009

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A Laboratory Simulation for Coupled Cycles of Photosynthesis and Respiration

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Related Content

A Structure-Activity Investigation of Photosynthetic Electron Transport. An Interdisciplinary Experiment for the First-Year Laboratory

A Three-Dimensional Energy Surface for the Conformational Inversion of Cyclohexane

Teaching Theoretical Physical Chemistry: Density Functional Theory and the Taylor Expansion of the van der Waals Free Energy

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