Although Molecular Oxygen (O₂) Does Not Participate Directly in Any

question 38

Short Answer

Although molecular oxygen (O₂) does not participate directly in any of the reactions of the citric acid cycle, the cycle operates only when O₂ is present. Explain this observation.

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Definitions:

Radioactive Sugar

Sugars labeled with a radioactive isotope, used in scientific research to trace and study metabolic processes.

Carotid Artery

A major blood vessel that supplies blood to the brain, neck, and face.

Atomic Mass

Atomic mass is the mass of an atom, typically expressed in atomic mass units, reflecting the sum of the number of protons and neutrons in the nucleus.

Protons

Positively charged particles within an atom's nucleus.