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In isolated thylakoid membranes you measure, through the use of molecular probes, a transmembrane potential of...

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Chemistry

In isolated thylakoid membranes you measure, through the use ofmolecular probes, a transmembrane potential of delta psi = + 60 mVand a delta pH of 2- (inside acidic) across the thylakoid membrane.A) How much free energy is yielded by moving 1 mole of protonsoutward through the H+-ATPase under these conditions of delta psiand delta pH? B) If there are 10 c- subunits in the chloroplastATPase (cFo), how much energy is available to synthesize eachATP?

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4.1 Ratings (614 Votes)
Given Transmembrane potential of delta psi 60 mV Delta pH of 2 inside acidic A Freeenergy change during solute movement across a voltage gradient Hout Hin G nFm If proton pumping maintains a voltage gradient of 006V positive outside then m is negative here DG 19648 kJVmol 006 V    See Answer
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