Question

analyzing pumps
outside of cell
inside of cell
the diagram shows a pump. which labels can replace
x and the y in the diagram?
x: potassium, y: sodium
x: sodium, y: potassium
x: sodium, y: calcium
x: calcium, y: potassium

Explanation:

The diagram shows an active transport pump (uses energy) across a cell membrane. The sodium-potassium pump is a classic example: it moves sodium (Na⁺) out of the cell and potassium (K⁺) into the cell against their concentration gradients. Observing the direction: X moves out (matches sodium's outward transport), Y moves in (matches potassium's inward transport).

Answer:

X: sodium, Y: potassium