Which one of these is not an example using facilitated diffusion?
aquaporins facilitate the diffusion of water in the kidney tubules of many
mammals.
a carrier protein moves sucrose across the membrane with the
concentration gradient.
using the sodium-potassium pump involves the hydrolysis of atp and the
release of nat to the outside of the cell.
ca+2 moves from high cytoplasmic concentration to low concentration
inside the cell using a membrane-spanning protein.

C. "Using the sodium-potassium pump involves the hydrolysis of ATP and the

release of Nat to the outside of the cell."

Explanation:

The use of a sodium-potassium pump is a form of active transport, not diffusion. It also requires energy because the pump moves ions against their concentration gradient (low to high), unlike diffusion.

b c a d mark me

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.