A transporter is responsible for antiporting calcium and glucose. The transporter brings glucose into the cell and sends calcium out of the cell. If blood [calcium] = 2.55mM and intracellular [calcium] = 7uM, blood [glucose] = 5.2mM, and intracellular [glucose] = 40uM, what is the free energy of transport? Assume a membrane potential of 62mV (negative inside).

Human Physiology: From Cells to Systems (MindTap Course List)
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Chapter3: The Plasma Membrane And Membrane Potential
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Problem 2SQE: One of the important uses of the Nernst equation is in describing the flow of ions across plasma...
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A transporter is responsible for antiporting calcium and glucose. The transporter brings glucose into 
the cell and sends calcium out of the cell. If blood [calcium] = 2.55mM and intracellular [calcium] = 7uM, 
blood [glucose] = 5.2mM, and intracellular [glucose] = 40uM, what is the free energy of transport? Assume a 
membrane potential of 62mV (negative inside).

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