In the operation of sodium-potassium ATPase,Select one:Select the correct definitionthere is an obligatory coupling of sodium efflux and potassium influx.this transporter (or "pump") is electrogenic.phosphorylation and dephosphorylation respectively, are associated with the sodium and potassium transport steps.the pump transports two potassium ions for every three sodium ions.All of the above
Question
In the operation of sodium-potassium ATPase,Select one:Select the correct definitionthere is an obligatory coupling of sodium efflux and potassium influx.this transporter (or "pump") is electrogenic.phosphorylation and dephosphorylation respectively, are associated with the sodium and potassium transport steps.the pump transports two potassium ions for every three sodium ions.All of the above
Solution
All of the above.
In the operation of sodium-potassium ATPase:
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There is an obligatory coupling of sodium efflux and potassium influx. This means that the pump simultaneously moves sodium out of the cell and potassium into the cell.
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This transporter (or "pump") is electrogenic. This means that it generates an electrical current as it moves ions across the cell membrane.
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Phosphorylation and dephosphorylation respectively, are associated with the sodium and potassium transport steps. This means that the addition (phosphorylation) and removal (dephosphorylation) of a phosphate group are key steps in the transport process.
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The pump transports two potassium ions for every three sodium ions. This means that for every cycle of the pump, two potassium ions are moved into the cell and three sodium ions are moved out of the cell.
So, all of the statements are correct.
Similar Questions
Na+/K+ ATPase is considered to be an electrogenic pump because
The calcium ATPaseSelect one:Select the correct definitionis much simpler than the sodium-potassium pump because it has only three transmembrane regions.pumps 15 calcium ions for each molecule of ATP consumed.uses the same intracellular domain for both nucleotide binding and ion translocation.pumps calcium in a cyclical process that utilizes energy from ATP.is unique among transporters in that its pumping action involves no conformational changes.Don't know?
Almost all cells in the body contain Na K ATPase pump in their plasma membranes.it is the example of one of the following Transport mechanismSelect one:a. Uniportb. Antiportc. Co transportd. Symport
In a single pump cycle where sodium (Na+) and potassium (K+) are exchanged and ATP is used, the following is expected: 3 sodium ions enter and 2 potassium ions leaves the cell.2 sodium ion leaves and 1 potassium ion enters the cell3 sodium ions leave and 2 potassium ions enters the cell.sodium and potassium ions enter and water leaves the cell.
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