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How does the body use oxygen ususally?

5 doctors weighed in
Dr. Allen Seely
General Practice
3 doctors agree

In brief: OXYGEN for ENERGY

Biochemically, oxygen (o2) is required for energy production for every living cell.
Oxygen is transported by the blood bound to hemoglobin (red pigment in red cells). Oxygen is then delivered to the cells via simple diffusion. Oxygen is taken up by the mitochondria of the cells where oxidation and phosporylation are coupled to make atp (energy molecule). Oxygen converted to h20 in process.

In brief: OXYGEN for ENERGY

Biochemically, oxygen (o2) is required for energy production for every living cell.
Oxygen is transported by the blood bound to hemoglobin (red pigment in red cells). Oxygen is then delivered to the cells via simple diffusion. Oxygen is taken up by the mitochondria of the cells where oxidation and phosporylation are coupled to make atp (energy molecule). Oxygen converted to h20 in process.
Dr. Allen Seely
Dr. Allen Seely
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Michael Rommen
Family Medicine

In brief: Aerobic respiration

Oxygen helps our tissues use fuel (glucose/sugar) more efficiently.
With oxygen, 1 sugar molecule can produce 16 times more energy than without oxygen. When a tissue, like a muscle, receives less oxygen it gets fatigued much more rapidly. The picture shows a cell's energy production. Atp is energy. The first panel shows how much energy a cell makes w/o oxygen.

In brief: Aerobic respiration

Oxygen helps our tissues use fuel (glucose/sugar) more efficiently.
With oxygen, 1 sugar molecule can produce 16 times more energy than without oxygen. When a tissue, like a muscle, receives less oxygen it gets fatigued much more rapidly. The picture shows a cell's energy production. Atp is energy. The first panel shows how much energy a cell makes w/o oxygen.
Michael Rommen
Michael Rommen
Answer assisted by Michael Rommen, Medical Student
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