Which term describes lactic acid being transported to the liver and converted to glucose and glycogen?

Which term describes lactic acid being transported to the liver and converted to glucose and glycogen?

• A. EPOC
• B. Sub-maximal oxygen deficit
• C. Calorimetry
• D. Cori cycle

Answer: (D)

When high-intensity effort relies on anaerobic glycolysis, lactate builds up in the muscles. This lactate is released into the bloodstream and travels to the liver, where it is converted back into pyruvate and then into glucose via gluconeogenesis, with some of the glucose stored as glycogen. This recycling path is the Cori cycle. It helps clear lactate, replenish blood glucose, and provide a usable energy source during recovery when oxidative pathways are still catching up. The other terms refer to different concepts: excess post-exercise oxygen consumption describes the extra oxygen used after exercise to restore the body, sub-maximal oxygen deficit relates to the oxygen shortfall during submaximal work, and calorimetry measures energy expenditure through heat.

When high-intensity effort relies on anaerobic glycolysis, lactate builds up in the muscles. This lactate is released into the bloodstream and travels to the liver, where it is converted back into pyruvate and then into glucose via gluconeogenesis, with some of the glucose stored as glycogen. This recycling path is the Cori cycle. It helps clear lactate, replenish blood glucose, and provide a usable energy source during recovery when oxidative pathways are still catching up. The other terms refer to different concepts: excess post-exercise oxygen consumption describes the extra oxygen used after exercise to restore the body, sub-maximal oxygen deficit relates to the oxygen shortfall during submaximal work, and calorimetry measures energy expenditure through heat.