Class 11 · Breathing and Exchange of Gases

Transport of O₂ and CO₂ in Blood — NEET Biology

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Blood is the medium of transport for O₂ and CO₂. About 97 per cent of O₂ is transported by RBCs in the blood. The remaining 3 per cent of O₂ is carried in a dissolved state through the plasma. Nearly 20-25 per cent of CO₂ is transported by RBCs whereas 70 per cent of it is carried as bicarbonate. About 7 per cent of CO₂ is carried in a dissolved state through plasma.

NCERT Biology · Class 11 · Chapter 14 · Paragraph 29
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Adjacent to a frequently-asked paragraph in the same chapter.

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How is the remaining 3% of oxygen transported in the blood?

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