Glycolysis: A Pathway of Energy Production

How many ATP molecules are produced in glycolysis?

• 8

• 2

• 10

• 5

What is the net gain of ATP in glycolysis?

• 5 ATP

• 0 ATP

• 10 ATP

• 2 ATP

What are the end products of glycolysis?

• Glucose and NADH

• Lactic acid and CO2

• Fructose and ADP

• Pyruvate and ATP

Explain the role of NAD+ in glycolysis.

• NAD+ inhibits the enzymes involved in glycolysis

• NAD+ is not involved in glycolysis

• NAD+ acts as a structural protein in glycolysis

• NAD+ acts as a coenzyme that accepts electrons during glycolysis, becoming reduced to NADH.

Why is glycolysis considered an important pathway in metabolism?

• It only produces energy in the form of heat, not ATP.

• It has no role in the breakdown of glucose to produce energy.

• It is the initial step in the breakdown of glucose to produce energy in the form of ATP.

• It is the final step in the breakdown of glucose to produce energy in the form of ATP.

What is the fate of pyruvate produced in glycolysis?

• Broken down into fatty acids

• Converted into glucose

• Converted into acetyl CoA, lactate, or ethanol

• Used to produce ATP directly

What is the significance of glycolysis in anaerobic respiration?

• It is the final step in anaerobic respiration, producing ATP and pyruvate.

• It is the first step in anaerobic respiration, producing ATP and pyruvate.

• It has no significance in anaerobic respiration.

• It only produces pyruvate without generating ATP.

How does glycolysis contribute to the overall energy production in the cell?

• By breaking down glucose to produce ATP and NADH

• By producing water and carbon dioxide

• By storing excess energy in the form of glycogen

• By converting ATP to glucose and NADH