Question

charlotte is studying how nutrients are absorbed in the human body. which type of movement across a cell’s plasma membrane requires energy supplied by atp? a) osmosis b) facilitated diffusion c) active transport d) diffusion

Explanation:

• Osmosis: Movement of water across a semi - permeable membrane, down the concentration gradient, no ATP needed.
• Facilitated Diffusion: Movement of molecules (e.g., glucose) with the help of transport proteins, down the concentration gradient, no ATP needed.
• Active Transport: Moves molecules against the concentration gradient (from low to high concentration), and this process requires energy in the form of ATP.
• Diffusion: Movement of molecules from an area of high concentration to low concentration, down the gradient, no ATP needed.

Since the question asks for the type of movement that requires ATP, the answer is Active Transport.

Answer:

C) Active Transport