The change in electrical charge from 70 mV to the peak of the ...

[ashley]

The change in electrical charge from 70 mV to the peak of the action potential is due to ___ and the change in electrical charge from the peak of +30 or +40 mV back to 70 mV is due to___.
 
  A) inflow of chloride ions, outflow of sodium ions
  B) inflow of potassium ions, outflow of sodium ions
  C) inflow of sodium ions, outflow of sodium ions
  D) inflow of sodium ions, outflow of potassium ions

Question 2

A brief, rapid reversal of the neuron's potential from 70mV to +30 or +40 mV and back indicates:
 
  A) Sustained membrane reversal
  B) A hyperpolarization
  C) An action potential
  D) A refractory period

[bookworm410]

Answer to Question 1

D

Answer to Question 2

C

[ashley]

Excellent

[Dnite]

Thanks for the timely response, appreciate it