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The citric acid cycle

Contribution grade

Metabolism · Scoped scientific or research-capability contribution

Reference score200,000Provisional editorial estimate of this exact contribution; its grade is assessed separately.

What changed

Krebs and Johnson connected metabolic reactions into a cycle explaining how carbon compounds are oxidized in animal tissues.

Scientific scope

Krebs and Johnson connected metabolic reactions into a cycle explaining how carbon compounds are oxidized in animal tissues. Scope limitation: This source is Krebs’s later lecture identifying the 1937 work, not a fresh review of every original experiment. Other researchers established component reactions. The broader discovery and precursor roster remains incomplete.

Evidence

Assessment uses the catalogue-linked source evidence for the stated contribution. This source is Krebs’s later lecture identifying the 1937 work, not a fresh review of every original experiment. Other researchers established component reactions. The broader discovery and precursor roster remains incomplete.

Contributors

Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.

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