Process of mitochondria in a cell was first described by _______?

The processes of the mitochondria were not described by one person, but rather evolved over time. Albert von Kölliker first observed mitochondria in 1857, while Richard Altmann later coined the term "bioblasts" in 1890 before the name "mitochondria" was later established by others. The detailed functioning, especially cellular respiration and ATP synthesis, was then deciphered through decades of research by figures like Peter Mitchell, who proposed the "chemiosmotic coupling" theory in 1961.