Gluconeogenesis and Glycogen Metabolism Quiz

What is gluconeogenesis?

• The synthesis of glucose from noncarbohydrate precursors

• The conversion of glucose to glycogen

• The process of fat metabolism

• The process of breaking down glucose

Which of the following is NOT a substrate for gluconeogenesis?

• Glycerol

• Fructose

• Propionate

• Lactate

What is the primary role of glucagon in gluconeogenesis?

• Stimulates gluconeogenesis

• Increases insulin secretion

• Inhibits gluconeogenesis

• Stimulates glycolysis

Which enzyme is responsible for the conversion of pyruvate to oxaloacetate?

• Glucose 6-phosphatase

• Pyruvate carboxylase

• Fructose 1,6-bisphosphatase

• PEP-carboxykinase

What is the main product of glycogenolysis?

• Lactate

• Glucose 6-phosphate

• Fructose 1,6-bisphosphate

• Glucose

Which type of glycogen storage disease is characterized by glucose 6-phosphatase deficiency?

• Pompe disease

• Cori disease

• Von Gierke disease

• McArdle syndrome

What is the primary function of liver glycogen?

• To synthesize fatty acids

• To store and export glucose

• To produce lactate

• To provide energy for muscle contraction

Which hormone decreases the level of fructose 2,6-bisphosphate?

• Glucagon

• Cortisol

• Insulin

• Epinephrine

What is the role of acetyl CoA in gluconeogenesis?

• It is a substrate for glucose synthesis

• It inhibits gluconeogenesis

• It is converted to lactate

• It is not involved in gluconeogenesis

Which enzyme is inhibited by elevated levels of AMP?

• Glycogen phosphorylase

• Glycogen synthase

• Fructose 1,6-bisphosphatase

• Pyruvate kinase