22. Carbohydrate Metabolism

The following metabolites are present both in glycolysis and gluconeogenesis, except:

Which molecule is added to pyruvate and then removed in the next reaction?

Enzyme responsible for decarboxylation and phosphate transfer in the same gluconeogenic reaction is:

Fructose-1,6-bisphosphate is dephosphorylated by ________________ to fructose-6-phosphate.

What is the purpose of the Cori cycle?

Outline the conditions that direct pyruvate toward the following:

d. Glucose synthesis (gluconeogenesis)

In what tissues or organisms is each pathway present?

How many steps in gluconeogenesis are not the exact reversal of the steps in glycolysis? What kind of conversion of substrate to product does each involve? What is the common theme in each of these reactions?

Explain why the Cori cycle is necessary and when your cells would use this cycle.