d. Much of the experimental research on the propagation of nerve signals has focused on an especially large axon found in the squid. The axon's Nernst potential for K+ ions is -115 mV at a temperature of 15°C. The ion concentration outside the axon is 2.0 mM. What is the concentration inside the axon? 0.02 mm mM

Biochemistry
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Chapter1: Biochemistry: An Evolving Science
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d. Much of the experimental research on the propagation of nerve signals has focused on
an especially large axon found in the squid. The axon's Nernst potential for K+ ions is
-115 mV at a temperature of 15°C. The ion concentration outside the axon is 2.0 mm.
What is the concentration inside the axon?
0.02 mM
ii. 140 mM
iii. 200 mM
iv. 8000 mM
Explanation:
Transcribed Image Text:d. Much of the experimental research on the propagation of nerve signals has focused on an especially large axon found in the squid. The axon's Nernst potential for K+ ions is -115 mV at a temperature of 15°C. The ion concentration outside the axon is 2.0 mm. What is the concentration inside the axon? 0.02 mM ii. 140 mM iii. 200 mM iv. 8000 mM Explanation:
Expert Solution
Step 1

Nernst potential (V) can be calculated using following equation

V = RT/zF ln (Xout/Xin)

where V is equilibrium electrical potential difference

R is Gas constant

T is temperature (K)

z is ion charge

F is Faradays constant

Xout is ion concentration outside

Xin is ion concentration inside

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