How were proteins discovered?

Proteins were first discovered in the early 19th century by scientists such as Jöns Jacob Berzelius and Gerardus Johannes Mulder, who identified them as essential biological macromolecules. Mulder coined the term "protein" in 1838, deriving it from the Greek Word "proteiOS," meaning "primary" or "of first importance." The understanding of proteins advanced significantly with the development of techniques like chromatography and electrophoresis, allowing for the separation and analysis of these complex molecules. Subsequent studies revealed their diverse structures and functions, establishing proteins as fundamental components of living organisms.