Question

IN both plant and animal cells, the cell membrane
1. Produces enzymes
2. controls reproduction
3.is composed of sugars
4. regulates diffuion

Answer 1

http://www.biology4kids.com/files/cell_membrane.html

http://www.biologycorner.com/bio1/diffusion.html

What do you think?

Answer 2

1 is answer?

Answer 3

Did you read both sites I posted for you?

1 is not the answer.