12. (a) Using Eq. AQ=CAV and the data in the Table, calculate the number of ions entering the axon duringthe action potential, per meter of nonmyelinated axon length. (The charge on the ion is 1.6 x 10-19 coulomb.)(b) During the resting state of the axon, typical concentrations of sodium and potassium ions inside the axonare 15 and 150 millimole/liter, respectively. From the data in the Table, calculate the number of ions permeter length of the axon.Table 13.1 Properties of Sample AxonsHint:1 F (farad) = 1coulomb/1 voltPropertyNonmyelinated axonMyelinated axonAxon radius5 x 10-m5 x 10-6 m1 mole /liter = 6.02 x 1020 particles (ions, atoms, etc. ) Resistance per unit length of fluidcm6.37 x 10°2/m6.37 x 10°2/mboth inside and outside axon (r)Conductivity per unit length ofaxon membrane (gm)1.25 x 10-4 mho/mIn the resting state, the axon voltage is -70mV.During the pulse, the voltage changes to about+30mV, resulting in a net voltage change acrossthe membrane of 100 mV. Therefore, V to be usedin the equation AQ=CAV is 100 mV.3 x 10-7 mho/mCapacitance per unit length of3 x 10-7 F/m8 x 10-10 F/maxon (c)

12. (a) Using Eq. AQ=CAV and the data in the Table, calculate the number of ions entering the axon during the action potential, per meter of nonmyelinated axon length. (The charge on the ion is 1.6 x 10-19 Coulomb.) (b) During the resting state of the axon, typical concentrations of sodium and potassium ions inside the axon are 15 and 150 millimole/liter, respectively. From the data in the Table, calculate the number of ions per meter length of the axon. Axonc

12. (a) Using Eq. AQ=CAV and the data in the Table, calculate the number of ions entering the axon during the action potential, per meter of nonmyelinated axon length. (The charge on the ion is 1.6 x 10-19 Coulomb.) (b) During the resting state of the axon, typical concentrations of sodium and potassium ions inside the axon are 15 and 150 millimole/liter, respectively. From the data in the Table, calculate the number of ions per meter length of the axon. Axonc

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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