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If the sodium channel or the fast calcium channels are open the inside of the cell would be relatively more what?
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∙ 10y ago
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Wiki User
∙ 10y ago
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What does chalk have inside?
Primarily calcium carbonate
What is the normal direction of calcium transport via the calcium pump?
out of the cell, against the concentration gradient.The calcium pump moves calcium ions out of the cell - from the cytoplasm to the extracellular fluid. Because the calcium concentration is much higher outside the cell compared to the inside, this transport is against the calcium concentration gradient. Inside calcium concentrations often increase in response to hormones and nerve input. Calcium pumps are important in terminating these responses by returning calcium concentrations to resting levels.
What happens to your acetylcholine when you stumble?
from answers.com When a nerve impulse reaches an axon ending, voltage-gated calcium channels in the axonal membrane open and calcium, which is extremely low inside the cell, enters the nerve ending. The increase in calcium-ion concentration causes hundreds of synaptic vesicles to fuse with the cell membrane and expel acetylcholine into the synaptic cleft (exocytosis). The acetylcholine released at a neuromuscular junction binds reversibly to acetylcholine receptors in the muscle end-plate membrane, a postsynaptic membrane that is separated from the nerve ending by a very short distance. The receptor is a cation channel which opens when two acetylcholine molecules are bound, allowing a sodium current to enter the muscle cell and depolarize the membrane. The resulting impulse indirectly causes the muscle to contract.
What does the edoplasmic reticulum do in a cell?
it Forms channels through a network of folded membranes and Transports materials inside the cell
What is the purpose of the sodium-calcium exchanger in cardiac muscle?
Unlike skeletal muscles, cardiac muscles need extracellular calcium ions in order to perform contractions. The sodium-calcium exchanger is the protein that facilitates this transfer, trading calcium from outside the cardiac cell with sodium inside the cell.
Why is elevated glutamate levels neurotoxic?
Elevated glutamate levels opens calcium permeable ion channels, which flood the cell interior with calcium. This in turn opens pores in the mitochondria, which allows for proteins guarding apoptosis to flood the cell in great numbers, thus killing the cell from inside.
What channel is the ID channel?
the one inside your head!
What happens in each of the five phases of cardiac muscle depolarization?
PHASE0(RAPID DEPOLARIZATION) due to opening of fast voltage gated sodium channels PHASE1(INITIAL REPOLARIZATION) due to closure of sodium channels while loss of potassium is goingon ,making the cell polarized. PHASE2(PLATEAU) due to opening of calcium channels. influx of calcium neutralizes the effect of out going potassium so prolonged plateau is achieved. PHASE3(FINAL RE POLARIZATION) due to closure of calcium channels and continue loss of potassium makes the inside of cell more negative resulting in polarization. PHASE4(RMP) eventually cell returns to resting membrane potential due to K efflux and cell is ready for next cycle
Is calcium phosphate soluble?
No, calcium phosphate is insoluble. This is why calcium levels are kept low inside the cytoplasm (eukaryotic cells).
What does chalk have inside?
Primarily calcium carbonate
Is calcium inside a leg joint of a calf?
yes it is
What is the normal direction of calcium transport via the calcium pump?
out of the cell, against the concentration gradient.The calcium pump moves calcium ions out of the cell - from the cytoplasm to the extracellular fluid. Because the calcium concentration is much higher outside the cell compared to the inside, this transport is against the calcium concentration gradient. Inside calcium concentrations often increase in response to hormones and nerve input. Calcium pumps are important in terminating these responses by returning calcium concentrations to resting levels.
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.
What are the bits inside the computer that travel along electrical channels?
A bit that travels along an electrical channel in a computer is known as a variable or a component that has value. It is said to have two main values, which is the On and Off which is very logical giving the purpose of its function.
How can a levee prevent flooding?
It keeps rising water inside stream channels.
What has 20 positrons and is found inside teeth and bones?
Calcium
What is the oysters defense?
The calcium shell protecting the muscle inside.
