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InterviewSolution
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25) In plant cells, ATP is made in response to light. An electron transport chain is involved. Thiselectron transport chain is found in the |
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Answer» At the mitochondrial inner membrane Anelectron transport chain(ETC) is a series of complexes thattransferelectronsfromelectron donorstoelectron acceptorsviaredox(both reduction and oxidation occurring simultaneously) reactions, and couples this electron transfer with the transfer ofprotons(H+ions) across amembrane. This creates an electrochemicalproton gradientthat drives the synthesis ofadenosine triphosphate(ATP), a molecule that stores energy chemically in the form of highly strained bonds. Themoleculesof the chain includepeptides,enzymes(which areproteinsorprotein complexes), and others. The final acceptor of electrons in the electron transport chain duringaerobic respirationis molecularoxygenalthough a variety of acceptors other than oxygen such as sulfate exist inanaerobic respiration. |
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