The lipid molecules that are the main component of cell membranes are

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Phospholipids are the main component of cell membranes. They have a polar head that faces outward towards the aqueous environment and two nonpolar tails that face inward, creating a hydrophobic barrier. Steroids, such as cholesterol, are also found in cell membranes but are not the main component. Triglycerides are energy storage molecules and are not typically found in cell membranes. Prostaglandins are signaling molecules and are not found in cell membranes.

The Lipid Molecules That Are the Main Component of Cell