Phospholipids

Phospholipids are a type of fat molecule that are crucial for all living cells. They consist of two fatty acid tails and a phosphate group head, making them unique. This structure allows them to form bilayers, with heads facing outward and tails tucked inside. This arrangement creates cell membranes, which protect cells and regulate what enters or leaves. Phospholipids are essential for various biological processes, including communication between cells and energy storage. They play a vital role in maintaining cell structure and function, making them fundamental components of life.