Glucose plus oxygen yields carbon dioxide, water and energy in which process?

Glucose plus oxygen yields carbon dioxide, water and energy in which process?

• A. Metabolism.
• B. Anaerobic respiration.
• C. Aerobic respiration.
• D. Fermentation.

Answer: (C)

When glucose is fully oxidized in the presence of oxygen, energy is released through aerobic respiration. This pathway takes place in mitochondria, with oxygen acting as the final electron acceptor in the electron transport chain, and it produces carbon dioxide and water as wastes while generating a large amount of ATP for the cell’s use. That combination of complete oxidation to CO2 and H2O with substantial energy release is the hallmark of aerobic respiration. The other processes don’t fit this exact outcome. Anaerobic respiration occurs without oxygen and yields far less energy, producing different end products like lactic acid or ethanol and CO2 rather than water. Fermentation is another anaerobic route that also yields only small amounts of energy and does not fully oxidize glucose to CO2 and water. Metabolism is the broad umbrella for all chemical processes in the body, not the specific pathway described here.

When glucose is fully oxidized in the presence of oxygen, energy is released through aerobic respiration. This pathway takes place in mitochondria, with oxygen acting as the final electron acceptor in the electron transport chain, and it produces carbon dioxide and water as wastes while generating a large amount of ATP for the cell’s use. That combination of complete oxidation to CO2 and H2O with substantial energy release is the hallmark of aerobic respiration.

The other processes don’t fit this exact outcome. Anaerobic respiration occurs without oxygen and yields far less energy, producing different end products like lactic acid or ethanol and CO2 rather than water. Fermentation is another anaerobic route that also yields only small amounts of energy and does not fully oxidize glucose to CO2 and water. Metabolism is the broad umbrella for all chemical processes in the body, not the specific pathway described here.