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The interior of the cell becomes less negative due to an influx of sodium ions?
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∙ 12y ago
Depolarization
Wiki User
∙ 12y ago
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A nerve impulse results from?
It results from the opening of voltage-gated sodium ion channels, causing an influx of sodium ions (influx of positively-charged ions), depolarizing the neuronal membrane.
What is the reversal of the resting potential owing to an influx of sodium ions called?
Is called depolarization.
Name the membrane valves that open and close for potassium efflux and sodium influx?
ion channels
The greater influx of sodium ions results in what of the membrane?
depolarization
How is a sodium ion symbol written?
Sodium is a cation therefore it is written as Na+
If Chlorine receives an electron from Sodium then Chlorine becomes a(n)?
The chloride becomes Cl-1 . When an ion is negative, it becomes an anion (or A Negative ION).
Does action potential involve the influx of negative ions to depolarize the membrane?
No. The negative ions stay within the cell (neuron).An action potential begins (rising phase) with an influx of sodium, a positive ion or cation. The rising phase ends (falling phase) with an efflux of positive ions (potassium). The membrane potential is stabilized again with the action of the ATP dependent sodium-potassium pump.
What generates negative ions?
If in a neutral atom excess electrons one or two or more get attached, then it becomes a negative ion. For example in case of chlorine as it takes one electron from Sodium it becomes a negative ion.
A neuron starts to fire an impulse by the influx of what ions?
sodium
What is the presynaptic neuron release neurotransmitters in response to an influx of?
Sodium ions
An action potential is caused by an influx of these ions into the cell?
sodium ions
What kind of ions do a sodium atom and a chlorine atom become when a valence electron is transferred from one to the other?
when sodium valence electron is transferred to chlorine , both atoms become ions . the sodium atom becomes a positive ion . the chlorine atom becomes a negative ion .
What kind of ions do a sodium atom and a chlorine atom become when a valence electron is transferred one to the other?
when sodium valence electron is transferred to chlorine , both atoms become ions . the sodium atom becomes a positive ion . the chlorine atom becomes a negative ion .
Typically, the change in charge of cell occurs due to?
Influx of sodium ions
A nerve impulse results from?
It results from the opening of voltage-gated sodium ion channels, causing an influx of sodium ions (influx of positively-charged ions), depolarizing the neuronal membrane.
What kinds of ions do a sodium atom and a chlorine atom become when a valence electrons is transferred from one to the other?
sodium becomes positive ( as it loses a negative electron but still hs the same number of + protons) with a single + charge. chlorine becomes negative ( as it gains an extra negative electron but still hs the same number of + protons) with a single - charge. NaCl -------> Na+ Cl-
What kinds of ions do a sodium atom and a chlorine atom become when a valence electron is transfers from one to the other?
sodium becomes positive ( as it loses a negative electron but still hs the same number of + protons) with a single + charge. chlorine becomes negative ( as it gains an extra negative electron but still hs the same number of + protons) with a single - charge. NaCl -------> Na+ Cl-
