Identify the statement that is true.

a. passive transport does not require the cell to use energy, while active transport does. an example of passive transport is a the sodium-potassium pump.

b. passive transport requires the cell to use energy, while active transport does not. an example of passive transport is a carrier protein involved in facilitated diffusion.

c. passive transport does not require the cell to use energy, while active transport does. an example of passive transport is a carrier protein involved in facilitated diffusion.

d. passive transport requires the cell to use energy, while active transport does not. an example of passive transport is a the sodium-potassium pump.