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In which form is the majority of CO 2 transported in the blood?

belongs to book: Examination Questions and Answers in Basic Anatomy and Physiology|Martin Caon|| Chapter number:13| Question number:55

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2022-10-19

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In which form is the majority of CO 2 transported in the blood?

as a dissolved solute
bound to plasma proteins
as carbonic acid molecules
as bicarbonate (HCO 3 − ) ions

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waelhammad

2022-10-19

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D: CO 2 leaves the cell as dissolved gas. About 7 % is transported in solution in plasma, 23 % bound to haemoglobin (HbCO 2 ) in rbc, while 70 % reacts with water to form carbonic acid, which disassociates to form bicarbonate ions.

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