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Can an excitatory synapse only one type of channel open allowing both sodium and potassium to diffuse stimultaneously in opposite directions and still allowing depolarization to take place?
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∙ 12y ago
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Wiki User
∙ 12y ago
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When is a neurolemma more permeable to potassium than sodium?
during depolarization
Binding of the Acetylcholine to receptors causes a by opening what channels that permit both potassium and sodium to permeate the membrane?
Nicotinic by depolarization
What is the first element in the fourth period?
potassium :D
What is the name of the ionic compound K2SO4?
i think either potassium(II) sulfate or potassium sulfate
Different kinds potassium salts?
Examples: potassium chloride, potassium carbonate, potassium sulfate, potassium citrate etc.
Which electrolyte flows into the cell to initiate depolarization?
potassium The answer of potassium is dead wrong. Sodium is the electrolyte that flows into the cell to initiate depolarization. Potassium flows into the cell during repolarization.
What molecules cause polarization and depolarization?
Sodium ions cause depolarization and potassium ions cause repolarization.
When is a neurolemma more permeable to potassium than sodium?
during depolarization
What cell structure is used to prepare for depolarization?
Sodium potassium pump
What changes occur in the neuron?
Neurons undergo depolarization and repolarization when stimulated. The sodium and potassium channels open.
What causes Local depolarization that leads to generate action potential?
Opening of sodium channels and the fact that potassium channels are still closed leads to rapid depolarization that may lead to the neuron firing.
What does the sodium-potassium exchange pump transfer into and out of the cell during depolarization?
The sodium potassium pump does not function during depolarization, but rather after repolarization. During repolarization, potassium ions flow out of the cell into the extracellular space to reestablish membrane polarity. What the sodium potassium exchange pump does is reestablish the initial ionic concentrations. It does this by exchanging three sodium ions inside the cell for every two potassium ions outside the cell.
How does the sodium potassium pump help with your homeostasis?
When a nerve cell (neuron) or muscle cell react, they do so by a process called depolarization. Before depolarization, the inside of the cell is slightly negative and the outside is slightly positive. During depolarization, sodium ions rush into the cell while potassium channels leak out. This reverses the original polarization and now the cell is said to be depolarized. The sodium/potassium pump helps reverse this back to its original polarized state so the cell can react again.
Binding of the Acetylcholine to receptors causes a by opening what channels that permit both potassium and sodium to permeate the membrane?
Nicotinic by depolarization
Why do humans need potassium?
Without it, cells could not undergo depolarization and hyperpolarization. Thus, there would be no communication occuring, and no transmission of nerve impulses, either. Without potassium, survival would cease.
After depolarization phase of an action potential the resting potential is restored by?
the opening of voltage-gated potassium channels and the closing of sodium activation gates.
What will occur when an excitatory postsynaptic potential EPSP is being generated on the dendritic membrane?
A single type of channel will open, permitting simultaneous flow of sodium and potassium.
