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Which of the following is NOT a characteristic of the sodium-potassium ATPase (Na\(^+\)-K\(^+\) pump) associated with electrically excitable cells?

A. It hydrolyzes ATP to gain energy used to transport ions against their concentration gradients.
B. It is an active transporter, a cotransporter, and an antiporter.
C. It typically transports one Na\(^+\) ion out of the cell for every one K\(^+\) ion it transports inside the cell.
D. It is primarily responsible for establishing and maintaining resting membrane Na[tex]\(^+\)[/tex] and K[tex]\(^+\)[/tex] ion concentrations.

Sagot :

GinnyAnswer

Final answer:

The Na+/K+ pump has specific characteristics including ATP hydrolysis, being an active transporter, specific ion transport ratios, and maintaining ion concentrations.


Explanation:

The sodium-potassium ATPase (Na+/K+ pump) associated with electrically excitable cells has various characteristics:

  1. Hydrolyzes ATP to transport ions against their concentration gradients.
  2. Acts as an active transporter, a cotransporter, and an antiporter.
  3. Transports three sodium ions out of the cell and two potassium ions into the cell per cycle, against their concentration gradients.
  4. Plays a crucial role in establishing and maintaining resting membrane Na+ and K+ ion concentrations.

Therefore, the characteristic that is NOT associated with the sodium-potassium ATPase is that it typically transports one Na+ ion out of the cell for every one K+ ion it transports inside the cell.


Learn more about Sodium-Potassium ATPase characteristics here:

https://brainly.com/question/43317077


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