Cell Membranes Selective Permeability | Reason Examples The phospholipids form a bilayer, or double layer A phospholipid has two parts: the head, which likes water (hydrophilic) and the tail, which doesn't like water (hydrophobic)
Carbohydrates in the Cell Membrane | Overview Function A phospholipid is a lipid attached to a phosphate group The head (red part in figure) is made of phosphate This portion of the phospholipid bilayer is hydrophilic and mixes well with water
Cholesterol in the Cell Membrane - Study. com Cholesterol stabilizes the cell membrane by forming interactions with the phospholipid tails and heads This makes their structure more rigid and helps provide stability