Question

what is an example of something moving with the concentration gradient? all of these a cell with a low concentration of water pumping water out into an environment with a high concentration of water carbon dioxide moving from a low concentration outside of a cell to a high concentration inside of a cell oxygen moving from a high concentration outside of a cell to a low concentration inside of a cell

Explanation:

Moving with the concentration gradient means moving from an area of higher concentration to an area of lower concentration. Osmosis (water movement) and simple diffusion (e.g., oxygen, carbon dioxide movement) follow this principle.

• For the option “A cell with a low concentration of water pumping water out into an environment with a high concentration of water”: Pumping against the gradient (from low to high) is active transport, not with the gradient.
• For the option “Carbon dioxide moving from a low concentration outside of a cell to a high concentration inside of a cell”: This is against the gradient.
• For the option “Oxygen moving from a high concentration outside of a cell to a low concentration inside of a cell”: This is with the gradient (diffusion).

Answer:

Oxygen moving from a high concentration outside of a cell to a low concentration inside of a cell