Which description matches the Embden-Meyerhof pathway?

Which description matches the Embden-Meyerhof pathway?

• A. Glycolysis that converts glucose to lactate during anaerobic metabolism.
• B. Glycolysis that yields acetyl-CoA for entry into the Krebs cycle.
• C. Glycolysis that starts with glucose and ends with pyruvic acid, one molecule of glucose becomes two ATP and 2 NADH molecules.
• D. Glycolysis that occurs in the mitochondria and uses oxygen.

Answer: (C)

Glycolysis, the Embden-Meyerhof pathway, breaks down glucose in the cytosol to ultimately form pyruvate. This process starts with glucose and ends with two pyruvate molecules, and it yields a net two ATP and two NADH per glucose molecule. It does not require oxygen directly, so it can occur under both aerobic and anaerobic conditions. The end product of this pathway is pyruvate, which can then enter different routes depending on the cell’s oxygen availability. The option that describes lactate formation refers to fermentation after glycolysis, not the glycolysis steps themselves. The option about acetyl-CoA describes the next link to the Krebs cycle, not glycolysis. The option about mitochondria and oxygen describes oxidative steps outside glycolysis. Therefore, the description that matches the Embden-Meyerhof pathway is the one where glucose is converted to pyruvate with a net yield of two ATP and two NADH.

Glycolysis, the Embden-Meyerhof pathway, breaks down glucose in the cytosol to ultimately form pyruvate. This process starts with glucose and ends with two pyruvate molecules, and it yields a net two ATP and two NADH per glucose molecule. It does not require oxygen directly, so it can occur under both aerobic and anaerobic conditions. The end product of this pathway is pyruvate, which can then enter different routes depending on the cell’s oxygen availability. The option that describes lactate formation refers to fermentation after glycolysis, not the glycolysis steps themselves. The option about acetyl-CoA describes the next link to the Krebs cycle, not glycolysis. The option about mitochondria and oxygen describes oxidative steps outside glycolysis. Therefore, the description that matches the Embden-Meyerhof pathway is the one where glucose is converted to pyruvate with a net yield of two ATP and two NADH.