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23 Nov 2019

BIO Electric Potential across a Cell Membrane Inatypicalliving
cell, the electric potential inside the cell is 0.070 Vlowerthanthe electric potential
outside the cell. The thickness of the cell membrane is0.10μm. Whatis the magnitude
and direction of the electric field within the cell membrane?

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space. Assume that the membrane acts like a parallel plate capacitor in which the effective charge density on the inner and outer walls has a magnitude of 5.57 x 10-6 C/m2. (a) What is the magnitude of the electric field within the cell membrane? (b) Find the magnitude of the electric force that would be exerted on a potassium ion (K+; charge = +e) placed inside the membrane.

The membrane surrounding a living cell consists of an inner and anouter wall that are separated by a small space. Assume that themembrane acts like a parallel plate capacitor in which theeffective charge density on the inner and outer walls has amagnitude of 5.54 x 10-6 C/m2. (a) What is the magnitude of theelectric field within the cell membrane? (b) Find the magnitude ofthe electric force that would be exerted on a potassium ion (K+;charge = +e) placed inside the membrane.

Hint:For part (b), recall the electric force is equal to theelectric field multiplied by the charge.



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