Macromolecule

Definition

A macromolecule is a large, complex molecule that is fundamental to the structure and function of living organisms, including proteins, nucleic acids, carbohydrates, and lipids. In the context of anatomy and physiology, these molecules play crucial roles in cell structure, energy storage, and genetic information transmission.

Related terms

Protein: Proteins are macromolecules made up of amino acids that perform a vast array of functions within organisms, including catalyzing metabolic reactions and supporting immune responses.

Nucleic Acid: Nucleic acids are macromolecules that store and transmit genetic information in cells through DNA (deoxyribonucleic acid) and RNA (ribonucleic acid).

Lipid: Lipids are hydrophobic or amphipathic molecules that include fats, oils, waxes, phospholipids, and steroids; they serve as key components of cell membranes and energy storage molecules