Questions: Oxygen is at a higher concentration outside of the cell compared to inside of the cell. The cell membrane is permeable to oxygen. In which direction will the oxygen molecules diffuse? Multiple Choice From the outside of the cell to the inside of the cell From the inside the cell to the outside the cell Oxygen will not diffuse.

The answer is the first one: From the outside of the cell to the inside of the cell.

Explanation for each option:

1. From the outside of the cell to the inside of the cell: This is the correct answer. Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration. Since oxygen is at a higher concentration outside the cell and the cell membrane is permeable to oxygen, oxygen molecules will naturally diffuse into the cell.

2. From the inside the cell to the outside the cell: This is incorrect. If oxygen is at a higher concentration outside the cell, it will not move from the inside to the outside. Diffusion occurs down the concentration gradient, not against it.

3. Oxygen will not diffuse: This is incorrect. Given that the cell membrane is permeable to oxygen and there is a concentration gradient, oxygen will diffuse from the area of higher concentration (outside the cell) to the area of lower concentration (inside the cell).

Summary: Oxygen molecules will diffuse from the outside of the cell to the inside of the cell due to the concentration gradient and the permeability of the cell membrane to oxygen.