Effects of Fatty Acid Composition on Membrane Properties

Membrane composition significantly influences its fluidity and the functionality of integral proteins. Phospholipids, cholesterol, and proteins are essential components of biological membranes, contributing to various functions, including signaling, transport, and structural integrity. One type of lipid known for its role in membrane structure is the phospholipid. These molecules consist of a hydrophilic 'head' and two hydrophobic 'tails'. Based on this information, which of the following statements accurately describes the effects that varying chain lengths and degrees of saturation of fatty acid tails have on membrane properties?