I really only need help with #3, thank you Exam 1 Key.F2015-Bio-S( 3700LM-Exam1-

Question

I really only need help with #3, thank you

Exam 1 Key.F2015-Bio-S( 3700LM-Exam1-F201e × e lchegg.com G on the graph, mark the ar l nemst equation l Khan Ac I concentration cell (Video) | + bblear missouri edubbcs webda/pid-3315940-dt content rid 325941 601/courses/FS201 7 BIOSC 3700.01/3700LM Exam! F2016 pdf Write your name and ID! The Nernst equation gives the equilibrium potential of an on (in mV: log(1) =0, log(10)-1, log(20)-1.3, log(100)-2, log(0.1)--1, log(0.2)--1.3, log(0.01)--2, z = valence of the ion. IX. and [X], are the concentrations of ionic species x, outside and inside the cell, respectively (A). (20 pts.) You have a cell that has contains only K and Na' leak channels in the membrane (no voltage-gated channels). The ionic flows (currents, arbitrary units) through these K and Na* leak channels are represented in the figure below, as a function of membrane potential. lonic flovw (current) flow -80 -60 -40 +20 +60 +80 mVI Na 6-56 PM 9/17/2017 Type here to search

Explanation / Answer

When the membrane potential has o mV , there is no potential difference across the cell as the number of Na+ ions outside the cell is same as the K+ ions inside the cell. However the cell becomes stable only when it reaches the resting membrane potential. This is all due to the permeability of the ions.

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