Chemistry of Lipids

1. Lipids: Overview

  • Definition: Lipids are hydrophobic (water-insoluble) organic compounds composed mainly of carbon, hydrogen, and oxygen, with some containing phosphorus and nitrogen.

  • Nature: They are amphipathic, having both hydrophilic (polar) and hydrophobic (non-polar) regions.

  • Functions: Lipids play key roles in energy storage, membrane structure, insulation, signaling, and hormone synthesis.

lipid classification
lipid classification

2. Classification of Lipids

3. Biomedical Functions of Lipids

Lipids Biomedical functions
Lipids Biomedical functions

4. Clinical Importance of Lipids

Lipids Clinical Importance
Lipids Clinical Importance

5. Structure of Key Lipids

Key Lipids

  • Triglycerides: Glycerol backbone + 3 fatty acids.

  • Phospholipids: Glycerol + 2 fatty acids + phosphate group (amphipathic).

  • Cholesterol: Steroid ring structure with a hydroxyl group.

  • Glycolipids: Lipids attached to a carbohydrate, found in cell membranes.

5. Structure of Key Lipids

Key Lipids

  • Triglycerides: Glycerol backbone + 3 fatty acids.

  • Phospholipids: Glycerol + 2 fatty acids + phosphate group (amphipathic).

  • Cholesterol: Steroid ring structure with a hydroxyl group.

  • Glycolipids: Lipids attached to a carbohydrate, found in cell membranes.