Question

which statements accurately describe the na+/k+-atpase? select all that apply.
it allows active transport to happen.
it moves na+ ions from high concentration to low concentration.
it is a membrane channel.
it needs energy from atp to function.

Explanation:

• The Na⁺/K⁺ - ATPase is an active transport pump. Active transport requires energy (from ATP in this case) to move substances against their concentration gradient.
• It moves 3 Na⁺ ions out of the cell (from low to high concentration inside the cell relative to the outside in a resting cell) and 2 K⁺ ions into the cell (from low to high concentration outside the cell relative to the inside in a resting cell). It is not a simple membrane channel (which would allow passive transport down a concentration gradient).

Answer:

It allows active transport to happen. It needs energy from ATP to function.