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23 Nov 2019

BIO Electric Potential across a Cell Membrane In a typicalliving
cell, the electric potential inside the cell is 0.070 V lower thanthe electric potential
outside the cell. The thickness of the cell membrane is 0.10 µm.What is the magnitude
and direction of the electric field within the cell membrane?

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Patrina Schowalter
Patrina SchowalterLv2
3 Nov 2019

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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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