alleryStart learning →Who first identified the steps of the citric acid cycle, and in which tissue?
AMelvin Calvin, in pigeon flight muscles
BMelvin Calvin, in rat liver samples
CHans Krebs, in pigeon flight muscles
DHans Krebs, in rat liver samples
Answer & Solution
Correct answer: C. Hans Krebs, in pigeon flight muscles
1. The cycle carries three names, one of which is the Krebs cycle.
2. It is named after Hans Krebs, who first identified the steps in the pathway in the 1930s.
3. He worked those steps out in pigeon flight muscles.
4. Melvin Calvin is linked with a different cycle, the light-independent reactions of photosynthesis.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 7 "Cellular Respiration", section 7.3 Oxidation of Pyruvate and the Citric Acid Cycle_
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