scientist is studying how oxygen moves across the cell membrane. She places living cells in a sealed container with a high concentration of oxygen outside the cells and a low concentration inside. Over time, she observes that oxygen molecules move into the cells without the use of energy.

Question

scientist is studying how oxygen moves across the cell membrane. She places living cells in a sealed container with a high concentration of oxygen outside the cells and a low concentration inside. Over time, she observes that oxygen molecules move into the cells without the use of energy.
 
Which process best explains how oxygen moves into the cells?
(5 Points)

Active transport, because oxygen requires energy to move across the membrane.

Facilitated diffusion, because oxygen moves through protein channels.

Osmosis, because oxygen is dissolved in water.

Diffusion, because oxygen moves from high concentration to low concentration without energy.

GPT-4o mini · Answer

The process that best explains how oxygen moves into the cells is:

Diffusion, because oxygen moves from high concentration to low concentration without energy.

Diffusion is the natural movement of particles from an area of higher concentration to an area of lower concentration, and it does not require energy. In this case, the oxygen molecules are moving into the cells where the concentration is lower.