In the Cori Cycle,the Liver Shares the Load of Exercising

Question

In the Cori cycle,the liver shares the load of exercising muscle.What is this a result of?
A)high acetate levels
B)high galactose levels
C)a high NAD⁺/NADH ratio
D)a high FAD/FADH ratio

Accepted Answer

The Cori cycle involves the conversion of lactate produced by exercising muscle to glucose in the liver, which is then released back into the bloodstream and taken up by muscle for energy production. This process requires the oxidation of NADH to NAD+ in the liver, which can only occur if there is a high NAD+/NADH ratio. Therefore, choice C is the best answer. High acetate levels (choice A) and high galactose levels (choice B) are not directly relevant to the Cori cycle, and a high FAD/FADH ratio (choice D) is not necessary for this process.