Choose the correct answer:

Under stressful conditions epinephrine is released from the adrenal medulla. The release of epinephrine has which of the following effects on glucose metabolism? A) glycogenolysis is stimulated B) glycogenesis is inhibited C) adenylate cyclase is activated D) Both A and B E) All of the above

Glucose 6-phosphatase deficiency is a glycogen storage disease referred to as von Gierke disease. Which of the following symptoms would you NOT expect to see in patients with this disease? (A) severe fasting hypoglycemia (B) excess adipose triglyceride storage and low circulating levels of fatty acids (C) hyperammonemia (D) liver enlargement resulting from excess liver glycogen storage (E) lactic acidosis (F) gout

Muscles may become hypoxic during the early stages of exercise, causing lactate to build up. a) Describe in detail how a lack of oxygen might cause lactate to build up in the muscles. b) Explain how lactate (typically thought of as a waste product) may be converted to glucose via gluconeogenesis.

The rate of the reaction of glycogen N with inorganic phosphate, Pi, to form glucose-1-phosphate and glycogen N-1 is:

When some of the carbons of glutamate are converted to glycogen, what is the order of the following compounds in that pathway?(a) Glucose (b) Glutamate(c) Glycogen (d) Oxaloacetate(e) x-Ketoglutarate (f) Phosphoenolpyruvate

Hexokinase is an enzyme that uses glucose as its substrate. the rate at which hexokinase breaks down glucose is the same when there is a lot of glucose in the cell compared to when there is only a small amount of glucose in the cell A) TRUEB)FALSE

For each of the following situations, predict the major concequences for glycogen metabolism.  Explain your logic in a few sentences.  Will the amount of glycogen be higher or lower than the normal or unchanged. a) Effect of mutation Y194F in glycogenenin on glycogen synthesis. b) Effect on the loss of the gene that encodes inhibitor I of protein phosphatase I on both glycogen phosphorylase and glycogen synthase. c) Effect on the substrate analog shown below in glycogen synthesis (hint: what is the normal reaction sequence? At which step in the pathway does this sequence become blocked and why?)

Select which of the following enzymes unique to glycolysis are also sites of regulation for glycolysis. Select all that apply. a) glyceraldehyde 3 P dehydrogenase b) PFK c) pyruvate kinase d) hexokinase e) enolase f) phosphoglycerate mutase

Insulin will tend to increase (More than one answer may be correct): A)  gluconeogenesis B)  glycogenolysis C)  glycogenesis D)  protein degradation E)  lypolysis