lipids

Lipids are vital molecules in biological systems, primarily composed of hydrocarbons, making them hydrophobic. They form essential cell membrane structures with phospholipids creating lipid bilayers, crucial for sustaining protein functions. Lipids also serve as significant energy storage sources, as triglycerides in adipose tissues. Additionally, they participate in signaling pathways, with steroid hormones derived from cholesterol regulating physiological processes. Beyond energy and signaling roles, lipids provide insulation and organ protection, highlighting their critical role in maintaining life’s functions.