Question

Which of the following statements best explains how the cell membrane regulates what goes in and out of the cell?

A. the membrane allows only certain molecules to move into the cell
B. the membrane destroys most molecules so that they do not enter the cell
C. the membrane changes only certain into ions before they move into the cell
D. the membrane allows most molecules to transfer energy to the cell without entering the cell

I'm not quite sure, but I think the answer might be either A or D. Please help

Answer 1

Jiskha has no biology expert, but often, if you put at least part of your question into www.google.com, you can find good information. Read many of these search results.

https://www.google.com/search?q=how+the+cell+membrane+regulates+what+goes+in+and+out+of+the+cell&oq=how+the+cell+membrane+regulates+what+goes+in+and+out+of+the+cell&aqs=chrome..69i57j69i64.1666j0j7&sourceid=chrome&ie=UTF-8

Answer 2

You should also make good use of https://www.khanacademy.org/

Click on Courses at the top left and choose the subject area you need help with.

Answer 3

The cell membrane is semipermeable, allowing somethings to cross in either direction while preventing others. Answer choice A bests fits this description.