Question

1. a teacher shared this model with her class. movement of oxygen molecules across a cell membrane high concentration low concentration cell membrane oxygen molecules which statement is best explained by the model? how the cell membrane controls what enters and exits the cell how the cell membrane protects the cell from harmful chemicals how oxygen is important for body cells to survive and reproduce how oxygen concentration is always different inside and outside of cells

Explanation:

The model shows oxygen molecules moving from an area of high - concentration to low - concentration across a cell membrane. This illustrates the cell membrane's role in controlling the entry of substances (oxygen in this case) into the cell. It does not show protection from harmful chemicals, the importance of oxygen for cell survival and reproduction, or that oxygen concentration is always different inside and outside of cells.

Answer:

how the cell membrane controls what enters and exits the cell