gluconeogenesis

What is the primary function of gluconeogenesis?

• Synthesis of new glucose

• Breakdown of glycogen

• Conversion of glucose to lactate

• Production of ATP

Which organ is primarily responsible for gluconeogenesis?

• Heart

• Kidneys

• Liver

• Lungs

What is the main substrate that cannot be used for gluconeogenesis?

• Lactate

• Amino acids

• Fructose

• Glycerol

Which enzyme converts pyruvate to oxaloacetate in gluconeogenesis?

• Pyruvate carboxylase

• Glucose-6-phosphatase

• PEP carboxykinase

• Fructose-1,6-bisphosphatase

What is the role of acetyl-CoA in gluconeogenesis?

• Substrate for glucose synthesis

• Allosteric activator of pyruvate carboxylase

• Product of fatty acid oxidation

• Inhibitor of glycolysis

What is the primary function of glucose-6-phosphatase?

• Convert F-1,6-P to F-6-P

• Convert glucose-6-P to glucose

• Convert glucose to glucose-6-P

• Convert pyruvate to lactate

Which hormone stimulates glycogen synthesis?

• Epinephrine

• Insulin

• Cortisol

• Glucagon

What is the main product of the pentose phosphate pathway?

• ATP

• NADH

• Ribose-5-P

• Glucose-6-P

Which enzyme is the first step in the oxidative phase of the pentose phosphate pathway?

• Transaldolase

• Gluconolactonase

• Glucose-6-P dehydrogenase

• 6-Phosphogluconate dehydrogenase

What type of reaction does glycogen phosphorylase perform?

• Glycosylation

• Phosphorolysis

• Hydrolysis

• Phosphorylase