Enzymes
General
100

What is the name of the enzyme that converts oxaloacetate to phosphoenolpyruvate (PEP)

PEPCK


100

True or False: Gluconeogenesis is the complete reverse of glycolysis. 

False, While many steps are shared, gluconeogenesis bypasses three irreversible steps of glycolysis using different enzymes. 

200

Which enzyme is the first to bypass an irreversible step of glycolysis, converting pyruvate into oxaloacetate?

Pyruvate Carboxylase 


200

Which organ is the main site for gluconeogenesis in the body, especially during fasting?

  • A) Muscle

  • B) Brain

  • C) Liver

  • D) Heart

Liver 

300

Which of the key gluconeogenesis enzymes is regulated allosterically by acetyl-CoA?

Pyruvate carboxylase 


300

Which of the following CANNOT be used as a precursor for gluconeogenesis?

  • A) Lactate

  • B) Glycerol

  • C) Fatty acids (except for the glycerol backbone)

C) Fatty acids (except for the glycerol backbone)