Question

What membrane molecule is responsible for aiding passage of polar molecules into and out of the cell?

Answer 1

Transport proteins are responsible for aiding the passage of polar molecules into and out of the cell.

Step-by-step explanation:

The membrane molecule responsible for aiding the passage of polar molecules into and out of the cell is a transport protein. Transport proteins help facilitate the movement of specific molecules or ions across the cell membrane. There are different types of transport proteins, including channel proteins, gated channel proteins, and carrier proteins.

Answer 2

AS we know that the composition of plasma membrane is solely composed of phospholipids and protein molecules. lipid bilayer made up of phospholipid acts as differential permeable membrane because it allow only the transport of non polar molecules. however, there are some proteins known as carrier proteins that help in the transport of polar molecules through facilitated diffusion.