15 Questions
What is the membrane potential?
The difference in electrical potential between the inside and outside of the cell membrane
What is a resting neuron's characteristic voltage state?
It has a voltage across its membrane
What contributes largely to the membrane potential?
(Na+) and (Cl-) present at high concentration at the extracellular matrix
Which ion is impermeable to the cell membrane?
Na+
What is action potential?
A rapid rise and subsequent fall in voltage or membrane potential across a cellular membrane with a characteristic pattern
What is the membrane potential?
The difference in electrical potential between the inside and outside of the cell membrane
What contributes largely to the membrane potential?
(Na+) and (Cl-) present at high concentration at the extracellular matrix
What is the characteristic state of a resting neuron's voltage across its membrane?
It has a voltage across its membrane
Which ion is impermeable to the cell membrane?
(Na+)
What is action potential?
A rapid rise and subsequent fall in voltage or membrane potential across a cellular membrane with a characteristic pattern
What is the main factor determining the membrane potential?
Concentration gradients of ions across the membrane
Which ion is impermeable to the cell membrane?
Sodium (Na+)
What contributes largely to the resting membrane potential?
Potassium (K+)
What is the characteristic pattern of action potential?
A rapid rise and subsequent fall in voltage
What is the main cause of generating electrical potential across the cell membrane?
Unequal distribution of ions across the plasma membrane
Test your knowledge on membrane potential and calculating resting membrane potential in the context of biophysics lecture content PHY113.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
