Question

since the cell membrane allows some molecules to pass through it and will not allow others, it can be described as multiple choice \bigcirc impermeable. \bigcirc completely pervious. \bigcirc selectively permeable \bigcirc permeable. \bigcirc impervious.

Explanation:

To solve this, we analyze each option:

• "Impermeable" means no molecules pass through, which doesn't match the description.
• "Completely pervious" (or permeable) means all molecules pass through, which is incorrect.
• "Selectively permeable" means only some molecules pass through (others are blocked), matching the cell membrane's property.
• "Permeable" (similar to completely pervious) is incorrect as it implies all pass through.
• "Impervious" is similar to impermeable, incorrect.

Answer:

C. selectively permeable (assuming the third option is labeled C; if the original labels differ, adjust, but the correct option text is "selectively permeable")