Question

question 12 (2 points) what does it mean for a cell membrane to beselectively permeable? enables the free passage of some molecules, but prevents others from crossing provides cells with a semi - rigid externalshell prevents water from moving across the cell membrane allows free passage of most materials in/out of cells provides numerous sites of attachments for internal proteins

Explanation:

Selective permeability means a cell membrane allows certain molecules to pass through while blocking others. This is crucial for maintaining cell - internal environment and regulating substance exchange.

Answer:

enables the free passage of some molecules, but prevents others from crossing