Terminal electron Glucose Terminal Inorganic Terminal Energy electron energy electron as an acceptors energy source аcceptors acceptors sources sources Energy released Organic carbon Organic carbon Glucose H2 -------> H2 H2S compounds compounds CO2 H2S, CO2 so SO4 Pyruvate ------------ FEOOH Fe2+ Fe2+ NHẠ NO, (to form NH,*) NO3- (to form NH,*) NO3 (to form NH,*) Mn2+ MnO2 NO3 (to form N2) (a) Energy is released when electrons are moved from an energy source with a (b) Three examples of low affinity for electrons to a terminal electron acceptor with a higher affinity. (c) Three examples of chemolithotrophic metabolism chemoorganotrophic FIGURE 6.7 Chemical Energy Sources and Terminal Electron Acceptors Catabolic pathways can proceed as long as the energy source has a lower electron affinity than the terminal electron acceptor. As a group, bacteria and archaea use a wide variety of energy sources and terminal electron acceptors, which is why the organisms are so important ecoloaicallv Relative tendency to give up electrons Relative tendency to give up electrons Relative tendency to give up electrons Relative tendency to give up electrons Relative tendency to give up electrons

Terminal electron Glucose Terminal Inorganic Terminal Energy electron energy electron as an acceptors energy source аcceptors acceptors sources sources Energy released Organic carbon Organic carbon Glucose H2 -------> H2 H2S compounds compounds CO2 H2S, CO2 so SO4 Pyruvate ------------ FEOOH Fe2+ Fe2+ NHẠ NO, (to form NH,) NO3- (to form NH,) NO3 (to form NH,*) Mn2+ MnO2 NO3 (to form N2) (a) Energy is released when electrons are moved from an energy source with a (b) Three examples of low affinity for electrons to a terminal electron acceptor with a higher affinity. (c) Three examples of chemolithotrophic metabolism chemoorganotrophic FIGURE 6.7 Chemical Energy Sources and Terminal Electron Acceptors Catabolic pathways can proceed as long as the energy source has a lower electron affinity than the terminal electron acceptor. As a group, bacteria and archaea use a wide variety of energy sources and terminal electron acceptors, which is why the organisms are so important ecoloaicallv Relative tendency to give up electrons Relative tendency to give up electrons Relative tendency to give up electrons Relative tendency to give up electrons Relative tendency to give up electrons

Anatomy & Physiology

1st Edition

ISBN:9781938168130

Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble

Publisher:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble

Chapter24: Metabolism And Nutrition

Section: Chapter Questions

Problem 33CTQ: Insulin is released when food is ingested and stimulates the uptake of glucose into the cell....

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