0
What receptor type is exemplified by opening a channel to let sodium into the cell?
Wiki User
∙ 6y agoWant this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
How are chemically gated channels activated?
Chemically-gated ion channels are receptor membrane proteins that are permeable to specific ions. The 'gating' part of it refers to the channel being open only once activated; which in this case will be by a chemical. An example would be the AMPA glutamate receptor, which has a channel pore that is permeable to sodium ions. Only by binding to glutamate (a neurotransmitter) does the channel allow sodium ions to enter the cell.
What form of cellular transportation helps human cells maintain their sodium and potassium concentration?
The sodium/potassium pump, the sodium leak channel and the potassium leak channel.
Depolarization of the nerve membrane begins with?
opening of sodium channels
What molecularly happens a neuron affected by lidocaine?
Lidocaine is what is called an open sodium channel blocker. This means that it binds preferentially to sodium channels when they are in the open (letting sodium into the cell) state.
What is the first step for nerve impulse generation?
See my answer for What_type_of_signal_is_taking_place_during_neuron_to_neuron_communication
What are mechanical gated channels?
Chemically-gated ion channels are receptor membrane proteins that are permeable to specific ions. The 'gating' part of it refers to the channel being open only once activated; which in this case will be by a chemical. An example would be the AMPA glutamate receptor, which has a channel pore that is permeable to sodium ions. Only by binding to glutamate (a neurotransmitter) does the channel allow sodium ions to enter the cell.
How are chemically gated channels activated?
Chemically-gated ion channels are receptor membrane proteins that are permeable to specific ions. The 'gating' part of it refers to the channel being open only once activated; which in this case will be by a chemical. An example would be the AMPA glutamate receptor, which has a channel pore that is permeable to sodium ions. Only by binding to glutamate (a neurotransmitter) does the channel allow sodium ions to enter the cell.
Does receptor proteins pump sodium ions into a cell?
Yes§
How does a neuron create a positive feedback loop?
through what can be seen as the domino effect. when depolarization opens sodium ion channel and that results to the opening of more sodium ion channels. this creates a positive feedback loop.
Describe the interaction of acetylcholine and calcium ions in stimulating muscle contraction?
The acetylcholine diffuses across the synapse and binds to and activates nicotinic acetylcholine receptors on the motor end plate of the muscle cell. Activation of the nicotinic receptor opens its intrinsic sodium/potassium channel, causing sodium to rush in and potassium to trickle out.
A sodium channel blocker would increasedecreaseserum sodium levels outside of normal resting nerve cells?
a sodium channel blocker would (increase;decrease) serum sodium levels outside of normal resting nerve cells
What form of cellular transportation helps human cells maintain their sodium and potassium concentration?
The sodium/potassium pump, the sodium leak channel and the potassium leak channel.
When a sodium channel opens and sodium rushes into a myocyte the cell membrane becomes?
The cell becomes depolarized
Opening of sodium channels in the membrane of a neuron results in?
depolarization.
Depolarization of the nerve membrane begins with?
opening of sodium channels
What type of ion channel opening is caused by the binding of neurotransmitters to the receptors on the motor endplate?
Sodium enters the cell and causes depolarization. A small amount of potassium also leaves the motor end plate. This means binding of the neurotransmitter causes chemically gated sodium channels to open in the motor end plate.calcium
Why Sodium and potassium ion can only cross in axon membrane through protein channel explain why?
At rest sodium in the outside and potassium on the inside as action potential propagate along the axon, depolirization happens and sodium channel opens and allow sodium ions to flood into the neurone. A wave of deporization spread along the neuron, the neuron membrane contain specialised protein called channels. the channel from pore.
