Every cell in the body has organelles called mitochondria that can generate a vo

Question

Every cell in the body has organelles called mitochondria that can generate a voltage difference between their interior and exterior. Part A lf the capacitance o a mitochondrion is 2.9 × 10-11 F and he potential difference between the interior and ex enor is Express your answer to two significant figures and include appropriate units. 16 how much electrical energy does tstore Value Units Submit Part B If a mitochondrion were to use all of its stored electrical energy to produce ATP molecules, and each ATP molecule requires 9.5 x 102 J, how many molecules could it produce? (In reality,ATP molecules are produced by the flow of protons caused by the proton motive force, and not by the direct conversion of electrical energy stored by the capacitance of mitochondria.) Express your answer to two significant figures. ATP molecules

Explanation / Answer

(A) C = 2.9 x 10^-11 F

V = 0.16 V

U = CV^2 /2 = 3.712 x 10^-13 J

(B) U = n e

n = (3.712 x 10^-13) / (9.5 x 10^-20)

n = 3.91 x 10^6 mol

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