Membrane Proteins and Cell Communication

Membrane Proteins & Communication Membrane proteins are vital for cell function and communication.

They are divided into two main types based on their attachment to the lipid bilayer. Integral proteins

are embedded within the membrane, often spanning it entirely. Their hydrophobic

regions anchor them within the bilayer. They act as: Channels & Carriers: For transporting

ions and molecules. Receptors: For receiving chemical signals. Enzymes: For catalyzing reactions.

Peripheral proteins are temporarily attached to the membrane's surface, either to the lipid

heads or to integral proteins. This allows them to easily associate and dissociate,

making them ideal for rapid signaling and regulating the activity of integral proteins.