What transports water soluble substances in the cell membrane?

Answer 1

Water-soluble substances are primarily transported across the cell membrane through specialized proteins known as channels and transporters. These proteins facilitate the movement of molecules such as ions, glucose, and amino acids by creating pathways that allow for selective permeability. Channel proteins form pores that enable passive transport, while transporter proteins can facilitate active transport, often using ATP to move substances against their concentration gradient. This ensures that essential solutes can enter or exit the cell as needed.