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Because the voltage across a neural membrane is approximately -70mv, the inside of the membrane is negatively charged relative to the outside. Therefore, it is polarized; this polarization is maintained by retaining a low concentration of Na+ ion and a high concentration of K+ inside the cell (relative to the outside). Active transport helps this to occur, especially the Na+-K+ pump.
THis was a question on my homework too. Hope i helped =).
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoResting membrane potential; the bulk solutions inside and outside the cell are electrically neutral
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State of an unstimulated neuron's membrane?
Polarized
Does all body cells exhibit a resting membrane potential in their resting state therefore making all cells polarized?
In resting state, all body cells exhibit a resting membrane potential that typically ranges from -50 to -100 millivolts, depending on cell type. For this reason , all cells are said to be polarized.
What is a nerve membrane at rest called?
When the neural membrane (neurolemma) is at rest it is said to have resting potential, polarized, and has a negative charge inside.
Describe the action of depolarization and repolarization?
Depolarization is due to the influx of Na+ which causes the cell's internal membrane to become more positive, leading to an action potential. Repolarization occurs when K+ leaves the cell causing the interior of the cell to become negative again.
Homeostasis is defined as a state in which?
vital functions of the body are maintained at a normal level.
State of an unstimulated neuron's membrane?
Polarized
What is the Electrical condition of a plasma membrane of a resting neuron?
Polarized
Does all body cells exhibit a resting membrane potential in their resting state therefore making all cells polarized?
In resting state, all body cells exhibit a resting membrane potential that typically ranges from -50 to -100 millivolts, depending on cell type. For this reason , all cells are said to be polarized.
A small deviation from the resting membrane potential that makes the membrane more or less polarized?
graded potentials
When a neuron is in a resting state the majority of the particles in the fluid surrounding the neuron are?
polarized
What is a nerve membrane at rest called?
When the neural membrane (neurolemma) is at rest it is said to have resting potential, polarized, and has a negative charge inside.
Maintained by the plasma membrane is what?
the plasma membrane maintains passage of ions Homeostasis
How the maintenance of a polarized state in a resting nerve is provided?
Maintenance of a polarized state of a resting nerve is achieved through continuous expenditure of energy.
What is membrane polarity?
-70 mV this potential difference in a resting neuron (Vr) is called the resting membrane potential, and the membrane is said to be polarized.
When a resting nerve fiber is polarized sodium and potassium ions is higher on the inside of its membrane?
A resting nerve fiber is polarized because the concentration ofNa+ is higher on the outside and K+ is higher on the inside.
What about a cell's resting membrane potential is FALSE?
The resting membrane potential is maintained by solely by passive transport processes.
Why capacitor burst?
Electrolytic capacitors tend to explode when connected to AC or to DC currents of the wrong polarity. The plates short out because the dielectric is maintained by a polarized field, and is then destroyed by the wrong polarity.
