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Sodium ions go out of the cell and potassium ions go into the cell.
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∙ 15y ago
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∙ 13y agonorthbound
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How does the na-k atpase pump works?
3 Na+ ions attach to the transporter. ATP hydrolyzes, releasing a phosphate which binds to the transporter, causing a conformational change that releases the Na+ ions and phosphate to the cytosol. The decrease in Na+ ions causes an electrochemical gradient in the cell which attracts the K+ ions to the transporter which are brought in passively due to the electrochemical gradient. This maintains the membrane potential and osmotic pressure of the cell.
Why called sodium pump?
All animal cells actively throw out Na+ ions and take in K+ ions and this process is facilitated by an integral membrane protein called Na+ - K+ AT Phase or sodium pump, which operates as an anti porter.
Is the sodium potassium pump the main driving force of Na movement into a renal cell?
the Na/ K pump
Why is a sodium-potassium pump a form of active transport?
It transports Na+ and K+ ions up their concentration gradients. Because a pump sucks in the water or other material, the sodium-potassium pump also sucks these two in and then moves them from place to place.
The sodium-potassium pump releases?
Hmm. Maybe Sodium and Potassium? Or another answer is it transfers Na+ (sodium) out of the cell and K+ potassium into the cell.
What event initiates ATP attachment to the Na plus -K plus pump leading to the pump's phosphorylation?
The binding of Na+ ions to the pump
Which channel maintains the concentration gradients of ions across a neuronal membrane?
The sodium- potassium pump pump moving Na+ ions out and K+ 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.
How does the na-k atpase pump works?
3 Na+ ions attach to the transporter. ATP hydrolyzes, releasing a phosphate which binds to the transporter, causing a conformational change that releases the Na+ ions and phosphate to the cytosol. The decrease in Na+ ions causes an electrochemical gradient in the cell which attracts the K+ ions to the transporter which are brought in passively due to the electrochemical gradient. This maintains the membrane potential and osmotic pressure of the cell.
Why hyperventilation can be one of the causes of hypernatremia?
Hypernatriemia (excess Na, sodium ions in the blood) is a result of ineffective breathing, depletion of more Na, as the true mechanism for Na-K pump fails
What bonds is the strongest Na-I or Na-Cl or K-I or K-Cl?
In neurons, ________ ions are at higher concentration inside the cell and ________ ions are at higher concentration in the extracellular fluid. A) Cl; organically bound B) Cl; K C) K; Na D) Cl; Na E) Na; K
Do ions need a transport protein to enter bilayer?
Yes! K+ or Na+ or exchanged with its specific potassium and sodium pump protein on the membrane.
Why called sodium pump?
All animal cells actively throw out Na+ ions and take in K+ ions and this process is facilitated by an integral membrane protein called Na+ - K+ AT Phase or sodium pump, which operates as an anti porter.
What does the potassium pump usually pump?
K+ ions only.
Hormones that prevent loss of sodium ions?
Aldosterone. Aldosterone acts on the Na+/K+ ATPase pump in the Distal Proximal Tube/Collecting duct in the kidney. Importantly, when this pump action is up-regulated, Na+ re-absorption goes up along with WATER, which is recovered with the sodium ions.
What is a hormone that prevents the loss of sodium ions?
Aldosterone. Aldosterone acts on the Na+/K+ ATPase pump in the Distal Proximal Tube/Collecting duct in the kidney. Importantly, when this pump action is up-regulated, Na+ re-absorption goes up along with WATER, which is recovered with the sodium ions.
What is a sodium potassium pump?
sodium-potassium pump, in cellular physiology, a protein that has been identified in many cells that maintains the internal concentration of potassium ions [K+] higher than that in the surrounding medium (blood, body fluid, water) and maintains the internal concentration of sodium ions [Na+] lower than that of the surrounding medium. The pump, which has adenosine-triphosphatase (ATPase) activity, traverses the cell membrane and is activated by external [K+] and internal [Na+]. This enzyme uses metabolic energy to transport (pump) Na+ outward and K+ inward. The resting potential of cells and related bioelectric phenomena such as the action potential depends on the steady-state difference in concentrations of Na+ and K+ maintained by the pump.
