Cellular Respiration and Energy Production

This set of flashcards covers the key concepts of cellular respiration, including glycolysis, the citric acid cycle, fermentation, and the roles of oxygen and ATP production.

What drives cellular respiration in cells?

Cellular respiration is driven by glucose.

What are the products of glycolysis?

Glycolysis produces pyruvic acid, 2 ATP (4-2), and 2NADH.

Where does glycolysis take place in the cell?

Glycolysis occurs outside the mitochondria in the cytosol.

What follows glycolysis in the cellular respiration process?

Pyruvate enters the mitochondria and is oxidized into acetyl CoA. NADH is produced. 

What is the final product of the citric acid cycle?

The citric acid cycle produces 2 ATP, 6 NADH, 2 FADH, and 4 carbon dioxide.

How do electron carriers function in cellular respiration?

Electron carriers transport electrons to the electron transport chain in mitochondria.

What role does oxygen play in cellular respiration?

Only glycolysis can occur without oxygen. Oxygen is required in the final steps to produce ATP and water.

What occurs during anaerobic respiration in muscle cells?

In the absence of oxygen, pyruvate is converted to lactic acid, causing muscle fatigue.

What byproduct do yeast produce during fermentation?

Yeast produce ethanol as a byproduct of fermentation.

What is the overall ATP yield from one molecule of glucose during cellular respiration?

The maximum ATP yield is 30 to 32 molecules per glucose.