Question

The sodium-potassium pump establishes concentration gradients:

Answer 1

Answer:

The correct answer is C

Explanation:

The sodium-potassium pump is maybe the most well-known pump in biology, and rightly so as it is extremely important for life.

This pump functions by hydrolysis of ATP for energy, and by doing so pumps 3 Na+ molecules to the extracellular space and 2 K+ molecules to the intracellular space. This creates a higher sodium concentration outside the cell and a higher one inside the cell.

This gradient has several functions, such as helping maintain electrochemical neutrality and providing the adequate gradient of cations for signal transduction in neurons, to name a few.