Biopolymers are natural polymers that are synthesized by living organisms. Some common synonyms for biopolymer are biological polymers, biomolecules, organic polymers, and bio-based polymers. These synonyms are used to describe a wide range of natural polymers that are found in living organisms, including proteins, carbohydrates, nucleic acids, and lipids. Biopolymers are important for many functions in living organisms, including structural support, energy storage, and information storage and processing. They are also of increasing importance for a wide range of industrial and technological applications, including biodegradable packaging, drug delivery systems, and biomaterials for tissue engineering.