Researched
Krebs cycle
Hans Krebs described the citric acid cycle in 1937: a loop of reactions that burns food molecules to release the energy cells run on.
Open in the interactive tree →Working with pigeon breast muscle, Krebs showed that fuel is broken down in a closed cycle of acids, the first full map of a metabolic pathway. He shared the 1953 Nobel Prize with Fritz Lipmann.
Prerequisites
Unlocks
- Origin of lifeopenMetabolism-first theories look to a reverse Krebs cycle as an early self-sustaining chemistry