Marine mammals, especially large whales, use the oxygen in the air more efficiently than land mammals. How is oxygen extracted from the air and transported to the tissues with such efficiency?

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it takes hundreds of years to become stable.

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cellular respiration oxidizes food into energy in the form of atps.

glycolysis (6 c hexose) > 2x atps are used > 6c hexose biphosphate > 2 x 3c triphosphate >

2 x 3c pyruvate (2x nadh produced from nad) and (4x atp produced)

pyruvate actively pumped mitochondrial matrix.