Homework Help

Describe how the plasma membrane controls what goes in into and comes out of the cell.

user profile pic

amandamarieee | Student, Grade 10 | eNotes Newbie

Posted October 18, 2011 at 9:42 PM via web

dislike 0 like

Describe how the plasma membrane controls what goes in into and comes out of the cell.

1 Answer | Add Yours

user profile pic

calerin | Student | eNoter

Posted October 19, 2011 at 12:28 AM (Answer #1)

dislike 0 like

The plasma membrane uses selective permeability, by which a membrane allows some substances into the cells while keeping others out. Picture a butterfly net, the holes in the allow knats and other bugs to pass through, while capturing others.

Join to answer this question

Join a community of thousands of dedicated teachers and students.

Join eNotes