Active Transport

Which of the following statements is TRUE with regard to this animation?

To view the animation, click here. Then click on the membrane transport protein to start the animation.

	The cell is not expending energy.
	Both sodium and potassium ions are transported against their concentration gradients.
	Potassium ions are transported down their concentration gradient.
	Sodium ions are transported down their concentration gradient.
	The cell does not expend ATP.

Correct

Correct. Both ions are transported from where their concentration is low to where their concentration is high.

Think!