True
polarized
Outside a neuron, there are mostly sodium ions but some potassium ions. Inside the neuron, there are only potassium ions. Since both sodium and potassium are positive ions, and they are in a higher concentration outside the cell, that makes the outside have a more positive charge than the inside. But for all intents and purposes, the outside is positive, and the inside is negative. When the sodium ions (Na+) rush into the cell during depolarization, it causes the concentration of positive ions inside the cell to go WAY up, making the inside more positive than the outside. This means that the outside is now negative and the inside now positive.
A nerve fiber becomes polarized when the resting potential of the membrane changes. It starts out with an unequal distribution of charges- the outside is more positive and the inside is less positive. (Sodium (Na+) is in a higher concentration on the outside of the membrane and Potassium (K+) is in a lower concentration on the inside of the membrane.) A stimulus changes the gradient- when more Na+ flows in, the resting potential changes and polarization occurs, allowing for an action potential to be propagated down the axon.
Positive, the Neutrons and Protons are inside the nucleus, the negative electrons are outside of it
There is electrical potential difference between out side of the cell and inside of the cell, in case of the polarized neuron. This electrical difference is lost in case of depolarization. That is what can be said roughly.
polarized peace.love.hippiness
polarized peace.love.hippiness
polarized
A neuron that is polarized is also at rest potential. At this stage it is not conducting an impulse and has sodium ions on the outside and potassium ions on the inside.
A resting nerve fiber is polarized because the concentration ofNa+ is higher on the outside and K+ is higher on the inside.
Outside a neuron, there are mostly sodium ions but some potassium ions. Inside the neuron, there are only potassium ions. Since both sodium and potassium are positive ions, and they are in a higher concentration outside the cell, that makes the outside have a more positive charge than the inside. But for all intents and purposes, the outside is positive, and the inside is negative. When the sodium ions (Na+) rush into the cell during depolarization, it causes the concentration of positive ions inside the cell to go WAY up, making the inside more positive than the outside. This means that the outside is now negative and the inside now positive.
The outside is slightly positive while the inside is slightly negative.
A nerve fiber becomes polarized when the resting potential of the membrane changes. It starts out with an unequal distribution of charges- the outside is more positive and the inside is less positive. (Sodium (Na+) is in a higher concentration on the outside of the membrane and Potassium (K+) is in a lower concentration on the inside of the membrane.) A stimulus changes the gradient- when more Na+ flows in, the resting potential changes and polarization occurs, allowing for an action potential to be propagated down the axon.
Sodium is the major positive ion outside the cell. Potassium is the major positive ion inside the cell.
Positive, the Neutrons and Protons are inside the nucleus, the negative electrons are outside of it
The positive inside rule is a general rule for membrane proteins. Because of the mechanism involved in transmembrane domain insertion (regions of the protein which cross the membrane), membrane proteins tend to have more residues which can take on a positive charge on the inside of their cells. So, almost all, if not all membrane proteins have more solvent exposed Lysine and Arginine residues on the sides of the transmembrane domains which rest inside of the cell in comparison to the number which rest on the outside of the cell.
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 =).