Question

1. what does the term \selectively permeable\ mean? (slide 9)

Explanation:

A selectively - permeable membrane allows certain substances to pass through while restricting others. This is crucial for maintaining the internal environment of cells, controlling the movement of nutrients, waste, and ions.

Answer:

A selectively - permeable membrane is one that allows some substances to cross it more easily than others, controlling the movement of materials into and out of a cell or compartment.