The document provides an overview of key biomolecules, including carbohydrates, lipids, proteins, and nucleic acids, outlining their structures, functions, and significance in living organisms. Carbohydrates serve as energy sources and structural components, lipids are involved in energy storage and cell membrane formation, proteins exhibit functional diversity essential for life, and nucleic acids store and transmit genetic information. Each type of biomolecule has distinct characteristics and plays critical roles in biological processes.