Question

11 multiple choice 1 point sb1a. if you were a bad guy trying to sneak into a cell, who would be there to stop you? chloroplast cell membrane ribosome nucleus

Explanation:

The cell membrane acts as a barrier and regulates what enters and leaves the cell. Chloroplasts are for photosynthesis, ribosomes are for protein - synthesis, and the nucleus contains genetic material. The cell membrane would stop an unwanted entity from entering the cell.

Answer:

B. cell membrane