18 STO

Question 1

Explain how glycogenolysis proceeds and how it is controlled

Question 2

Explain how glycogenesis proceeds and how it is controlled

Question 3

Explain the logic as to why glycogen phosphorylase and glycogen synthase are under reciprocal control

Question 4

Explain how gluconeogenesis proceeds and how it is controlled

Question 4

Apply mechanisms of control (from previous chapters) to glycogen phosphorylase and glycogen synthase

Question 5

Indicate how substances other than pyruvate can enter the gluconeogenesis pathway

Question 6

Explain why oxaloacetate is an intermediate in gluconeogenesis

Question 7

Cite the two possible fates of oxaloacetate produced in the mitochondria in gluconeogenesis

Question 7

Explain the role of sugar phosphates in gluconeogenesis

Question 8

Explain the logic why glycolysis and gluconeogenesis are under reciprocal control

Question 9

Explain the logic of enzymatic cascade in the activation of glycogen phosphorylase

Question 10

Explain how hormones control glycogen metabolism

Question 11

Explain how substrate cycling regulates metabolism

Question 12

Explain how the Cori cycle recycles lactic acid (dead-end in metabolism) is recycled