The glycerol and phosphate group together constitute the polar and hydrophilic (or head) region of the molecule whereas the fatty acids make up the nonpolar and hydrophobic (or tail) region.
Gliserol miwah gugus fosfat sinarengan prasida ngwentuk genah polar miwah hidrofilik (utawi sirah) saking molekul raris asam lemak ngwentuk genah nonpolar miwah hidrofobik (utawi ikuh).