I’m not positive but: having 2 nutrients on one side of the membrane, and 6 on the other side. 2 of the 6 cross over to make 4 and 4. It’s not using energy since it’s going with the concentration, so it’s passive transport.
What are your problems in bio?
Answer: B. They allow for specific substance to travel throughout the cell.
Explanation: I know this because carrier proteins and channel proteins are some types of embedded proteins.
