Cholesterol

Forms a vital steroid lipid found in animal cell membranes, serving as a precursor for steroid hormones, bile acids, and vitamin D.

Key Functions:

• Regulates membrane fluidity and permeability.
• Precursor for all steroid hormones.
• Essential for the synthesis of bile acids.
• Component of lipoproteins for transport in blood.

Interacting Systems & Components:

• Cell Membrane (structural component)
• Steroid Hormones (synthesized from)
• Bile Acids (synthesized from)
• Low-Density Lipoprotein (transports)
• High-Density Lipoprotein (transports)
• Liver (site of synthesis and metabolism)