a. Patch clamp recording of a single ion channel yields the following results: Holding Potential (mV)Measured Current (pA)-100-1.0-500.00+1.0+50+2.0+100+3.0What is the electrical resistance (in ohms) of this channel? (keep in mind mV = 10-3 volts, pA = 10-12 amperes, and an ohm is a derived unit that is equivalent to a volt/ampere, i.e. a V/A).a.) 1 x 1010 ohmsb.) 2 x 1011 ohmsc.) 5 x 1010 ohmsd.) 2 x 10-11 ohmse.) 5 x 10-10 ohms b. What is the conductance of this channel in siemens (S)? (keep in mind 1 S = 1/ohm)a.) 2 x 1011 Sb.) 5 x 1010 Sc.) 1 x 10-11 Sd.) 2 x 10-11 Se.) 5 x 10-10 S c. What would be the equivalent conductance of 1,000 of these channels opened at the same time?a.) 1000 x conductance of 1 channelb.) 5 x 10-8 Sc.) 2 x 10-14 Sd.) 1/1000 the conductance of 1 channele.) 2 x 108 S

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Answered: . Patch clamp recording of a single ion…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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a. Patch clamp recording of a single ion channel yields the following results:

Holding Potential (mV)	Measured Current (pA)
-100	-1.0
-50	0.0
0	+1.0
+50	+2.0
+100	+3.0

What is the electrical resistance (in ohms) of this channel? (keep in mind mV = 10^-3volts, pA = 10^-12 amperes, and an ohm is a derived unit that is equivalent to a volt/ampere, i.e. a V/A).

a.) 1 x 10¹⁰ ohms

b.) 2 x 10¹¹ohms

c.) 5 x 10¹⁰ ohms

d.) 2 x 10^-11ohms

e.) 5 x 10^-10ohms

b. What is the conductance of this channel in siemens (S)? (keep in mind 1 S = 1/ohm)

a.) 2 x 10¹¹S

b.) 5 x 10¹⁰ S

c.) 1 x 10^-11S

d.) 2 x 10^-11 S

e.) 5 x 10^-10 S

c. What would be the equivalent conductance of 1,000 of these channels opened at the same time?

a.) 1000 x conductance of 1 channel

b.) 5 x 10^-8 S

c.) 2 x 10^-14 S

d.) 1/1000 the conductance of 1 channel

e.) 2 x 10⁸ S

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