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What type of ions moves into the cell in response to this neurotransmitter?
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∙ 14y ago
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∙ 14y ago
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Ions which trigger the realise of neurotransmitter?
Calcium....
Which statement is true about the movement of the ions through the Na/K pump?
For each molecule of ATP used, the pump moves three positively charged sodium ions out of the cell.
Do most animal cell membranes have proteins that pump sodium ions out of the cell and potassium ions into the cell?
Most animal cell membranes have proteins that pump ______ ions out of the cell and potassium ions into the cell
A neurotransmiter that allows sodium ions to leak into a postsynaptic neuron causes?
A neurotransmitter that allows sodium ions to leak into a postsynaptic neuron causes excitatory postsynaptic potentials. The neurotransmitter that is not synthesized in advance and packaged into synaptic vesicles is nitric oxide.
When sodium ions are reabsorbed in response to the action of aldosterone what do potassium ions do?
secreted
What is the first response a neuron makes to a stimulus?
Sodium ions enter the cell
Ions which trigger the realise of neurotransmitter?
Calcium....
What is a brief description of the action of the sodium-potassium pump?
The sodium-potassium pump is a transmembrane protein in a cell membrane. It keeps large concentrations of sodium ions outside the cell, and potassium ions inside the cell. It does this by pumping the sodium ions out, and the potassium ions in.
Which statement is true about the movement of the ions through the Na/K pump?
For each molecule of ATP used, the pump moves three positively charged sodium ions out of the cell.
What ion triggers the release of a neurotransmitter at the presynaptic membrane?
Calcium triggers synaptic vesicles to discharge the neurotransmitter into the synaptic cleft.
Do most animal cell membranes have proteins that pump sodium ions out of the cell and potassium ions into the cell?
Most animal cell membranes have proteins that pump ______ ions out of the cell and potassium ions into the cell
The energy-requiring process that moves molecules and ions across a cell membrane against a concentration difference is called?
Active transportation
What is the energy-requiring process that moves molecules and ions across a cell membrane against a concentration difference is clled what?
active transport
How does the sodium potassium pump operates?
The sodium-potassium pump functions much like a revolving door. Its main job is to keep sodium ions (NA+) outside of the cell and keep potassium ions (K+) inside of the cell. With the addition of energy from an ATP molecule, the sodium potassium pump moves three sodium ions out of the cell and moves two potassium ions into the cell with each turn. The goal of this process is to return, or keep, the cell at a resting state, or resting potential.
A neurotransmiter that allows sodium ions to leak into a postsynaptic neuron causes?
A neurotransmitter that allows sodium ions to leak into a postsynaptic neuron causes excitatory postsynaptic potentials. The neurotransmitter that is not synthesized in advance and packaged into synaptic vesicles is nitric oxide.
When sodium ions are reabsorbed in response to the action of aldosterone what do potassium ions do?
secreted
What's the direction sodium ions are pumped?
Sodium ions and potassium ions are pumped in opposite directions. Sodium ions are pumped out of the cell and potassium ions are pumped into the cell.
