Question

1. what does the term \semi - permeable\ mean in relation to the cell membrane? a. it allows some substances to pass through while blocking others. b. it allows all substances to enter and exit freely. c. it only allows water to pass through. d. it completely blocks all substances from entering.

Explanation:

A semi - permeable cell membrane allows certain substances to pass through while blocking others. This is a fundamental characteristic of cell membranes in biology, which helps in maintaining the cell's internal environment by controlling the movement of molecules in and out of the cell.

Answer:

a. It allows some substances to pass through while blocking others.