Glycolysis and Its Regulation

What is the end product of glycolysis?

• Pyruvate

• Lactate

• Glucose

• Acetyl CoA

Which enzyme is responsible for converting glucose to glucose 6-phosphate in most tissues?

• Pyruvate kinase

• Glucokinase

• Hexokinase

• Phosphofructokinase

What is the role of phosphofructokinase in glycolysis?

• Converts glucose to glucose 6-phosphate

• Converts ATP to ADP

• Converts fructose 6-phosphate to fructose 1,6-bisphosphate

• Converts pyruvate to acetyl CoA

Which molecule is reduced to NADH during glycolysis?

• ADP

• ATP

• NAD+

• FAD

How many net ATP molecules are produced from one glucose molecule during glycolysis?

• 8

• 2

• 6

• 4

Which enzyme is inhibited by high levels of ATP during glycolysis?

• Pyruvate kinase

• Hexokinase

• Glucokinase

• Phosphofructokinase

What effect does insulin have on glycolysis?

• No effect on glycolysis

• Activates glycolysis

• Inhibits glycolysis

• Converts glucose to glycogen

Which molecule acts as a negative regulator for phosphofructokinase?

• Glucose

• Fructose 6-phosphate

• Citrate

• ADP

What is the role of glucokinase in the liver?

• Converts glucose to glucose 6-phosphate

• Converts glucose to glycogen

• Converts pyruvate to lactate

• Converts ATP to ADP

Which molecule is a positive regulator of glycolysis?

• ATP

• Glucagon

• Insulin

• Citrate