10 Questions
What is the main reason for evolution to create voltage across neuronal membranes?
To generate electrical signals
What is the simplified Nernst equation used for?
To determine the equilibrium potential of single ion species
What is the net result of primary and secondary active transport in neuronal membranes?
Creation of voltage across the membranes
What are the types of neuronal electrical signals mentioned in the text?
Passive and active signals
What determines the magnitude of change for passive voltage changes in neuronal membranes?
The current injected
What is the primary factor causing the membrane voltage to take time to change?
Membrane capacitance
In the absence of capacitance and with only conductance, how would membrane voltage respond to current injection?
It would change instantly
What does the value of 63% represent in relation to the membrane time constant (τ)?
The time taken to reach 1-1/e of Vmax
How is the membrane time constant (τ) determined?
By both the membrane capacitance and resistance
What is the function of current flow onto the capacitor (Ic) in altering the membrane voltage?
It adds or removes charge from the capacitor
Test your understanding of neuronal membrane behavior and its representation in a circuit diagram with this quiz. Explore topics such as membrane capacitance, ionic conductance, equilibrium potential, and the Nernst equation.
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