[Answer] How is most carbon dioxide transported from tissues to the lungs?

Answer: As bicarbonate ions (HCO3−).

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How is most carbon dioxide transported from tissues to the lungs? Transport of Carbon Dioxide in the Blood | Biology for ... Carbon Dioxide Transport | Pathway Medicine Human respiratory system - Transport of carbon dioxide | Britannica Most carbon dioxide is carried from the body tissues to ... Carbon dioxide molecules are transported in the blood from body tissues to the lungs by one of three methods: dissolution directly into the blood binding to hemoglobin or carried as a bicarbonate ion. Several properties of carbon dioxide in the blood affect its transport. First carbon dioxide is more soluble in blood than oxygen. Some of the molecules of carbon dioxide are able to dissolve in the blood plasma. Most of the CO 2 is transported as bicarbonate ions (HCO 3 -) from the tissues of the body to the lungs. The third way that the gas is transported is attached to the red blood cells (erythrocyte...

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