ATP Production and Cellular Respiration

This video tutorial by Locos Learning explains the ATP count of cellular respiration for one glucose molecule. It covers the processes of glycolysis, the pyruvate dehydrogenase complex, the Krebs cycle, and the electron transport chain. The tutorial details the production of ATP, NADH, and FADH2 at each stage and provides a theoretical calculation of the total ATP yield. The video concludes with a summary of the ATP production process.

What is the net ATP gain from glycolysis per glucose molecule?

• 2 ATP

• 3 ATP

• 1 ATP

• 4 ATP

What is produced during the pyruvate dehydrogenase complex?

• 2 CO2

• 2 FADH2

• 2 ATP

• 2 NADH

How many ATP molecules are directly produced in the Krebs cycle per glucose?

• 3 ATP

• 2 ATP

• 1 ATP

• 4 ATP

What is the role of NADH and FADH2 in cellular respiration?

• They are waste products.

• They are electron carriers.

• They are converted to glucose.

• They are used directly as energy.

How many protons are pumped out by NADH in the electron transport chain?

• 10 protons

• 8 protons

• 6 protons

• 12 protons

How many ATP molecules are produced from one FADH2?

• 1 ATP

• 2 ATP

• 3 ATP

• 4 ATP

Where do the NADH molecules from glycolysis get oxidized?

• Second complex of the electron transport chain

• Third complex of the electron transport chain

• First complex of the electron transport chain

• Fourth complex of the electron transport chain

How many ATP molecules are theoretically produced from one glucose molecule?

• 32 ATP

• 36 ATP

• 34 ATP

• 30 ATP

What is the total ATP yield from NADH produced in the Krebs cycle?

• 16 ATP

• 20 ATP

• 18 ATP

• 12 ATP

What is the significance of the electron transport chain in ATP production?

• It directly produces ATP.

• It oxidizes glucose.

• It converts NADH and FADH2 into ATP.

• It stores energy.