Which process directly produces ATP in the Krebs Cycle?
Understand the Problem
The question is asking which specific process is responsible for the direct production of ATP during the Krebs Cycle. It requires knowledge of cellular respiration processes and specifically how ATP is generated in the Krebs Cycle.
Answer
Substrate-level phosphorylation.
The process that directly produces ATP in the Krebs Cycle is substrate-level phosphorylation, which actually produces GTP that is readily converted to ATP.
Answer for screen readers
The process that directly produces ATP in the Krebs Cycle is substrate-level phosphorylation, which actually produces GTP that is readily converted to ATP.
More Information
In the Krebs Cycle, ATP is actually synthesized as GTP (guanosine triphosphate) via substrate-level phosphorylation. GTP can easily be converted to ATP in cells.
Tips
A common mistake is to confuse oxidative phosphorylation, which generates most ATP in the electron transport chain, with the ATP produced directly in the Krebs Cycle.
Sources
- Krebs Cycle Overview - News-Medical - news-medical.net
- Steps of cellular respiration | Biology (article) - Khan Academy - khanacademy.org
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