A 7.2-nm-thick cell membrane undergoes an action potential that follows the curv

Question

A 7.2-nm-thick cell membrane undergoes an action potential that follows the curve in (Figure 1) .

Part A

What is the strength of the electric field inside the membrane just before the action potential?

Express your answer to two significant figures and include the appropriate units.

Part B

What is the strength of the electric field inside the membrane at the peak of the depolarization?

Express your answer to two significant figures and include the appropriate units.

Problem 23.46 Enhanced with Feedback A 7.2-mm-thick cell membrane undergoes an action potential that follows the curve in (Figure 1) You may want to review (D-pages T46-752) Figure 1 v of 1 AV membrane (mv) 40 t (ms) 70- Part A What is the strength of the elect c field inside the membrane just before the action potential? Express your answer to two significant figures and include the appropriate units. E- Value Units Submit My Answers Give Up Part B What is the strength of the electric field inside the membrane at the peak of the depolarization? Express your answer to two significant figures and include the appropriate units. E- Value Units Submit My Answers Give Up

Explanation / Answer

a)

here

E = V / d

E = (70 * 10^-3) / (7.2 * 10^-9)

E = 9..72 * 10^6 V/m

b)

E = v / d

E = (40 * 10^-3) / (7.2 * 10^-9)

E = 5.56 * 10^6 V/m

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