What is the Cori cycle?

Name: Problem 67, Chapter 22: Fundamentals of General, Organic, and Biological Chemistry
Uploaded: 2022-01-12T15:01:04-08:00
Duration: 2 min 3 s
Channel: Shahina -
Description: What is the Cori cycle?

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Key Concepts

Cori Cycle

The Cori cycle is a metabolic pathway that transfers lactate produced by anaerobic glycolysis in the muscles to the liver, where it is converted back into glucose through gluconeogenesis. This cycle is essential for clearing accumulated lactate during high-intensity exercise and maintaining blood glucose levels, thus supporting continued muscular activity.

Anaerobic Glycolysis

Anaerobic glycolysis is the process by which cells convert glucose into energy without the use of oxygen, resulting in the production of lactate. This pathway is critical during intense physical activity when oxygen is scarce, leading to the accumulation of lactate in muscle tissues, which then becomes a substrate for the Cori cycle.

Gluconeogenesis

Gluconeogenesis is the metabolic process that synthesizes glucose from non-carbohydrate precursors, such as lactate, amino acids, and glycerol. In the context of the Cori cycle, the liver employs gluconeogenesis to convert lactate back into glucose, which can then be released into the bloodstream and reused by the muscles for energy production.

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