Different Concentrations of Ions on Either Side of a Cell

question 58

Multiple Choice

Different concentrations of ions on either side of a cell membrane constitute a concentration cell, which is described by the Nernst equation given below. What is the electrochemical potential across a membrane when the sodium ion concentration is 0.10 M on one side of the membrane and 0.010 M on the other side, and the temperature is 37C (body temperature) ? (Given: ,  2.71 V; F  96,485 C; 1 J  1 C V; R  8.315 J / (mol K) )
E  E - InQ

• A)61.5 mV
• B)26.7 mV
• C)2.65 V
• D)2.68 V
• E)2.98 V

---

Definitions:

Autonomous Decision Making

The ability to make decisions independently, without needing approval or oversight from others, often referring to individuals or autonomous systems.

Consumer Purchase Decision

The process by which individuals select, purchase, and use goods and services, influenced by internal and external factors.

Opinion Leader

An individual or organization that has the ability to influence the attitudes or behaviors of others, typically within a specific community or market segment.

Influencer

An influencer is an individual who has the power to affect purchase decisions of others because of their authority, knowledge, position, or relationship with their audience.