Oxygen dissociation curveऑक्सीजन वियोजन वक्र

NCERT Fig 14.5 · interactive diagram

Parts and their functions

• Sigmoid curve (सिग्मॉइड वक्र) — % saturation of Hb with O₂ against pO₂.
• In the lungs (फेफड़ों में) — High pO₂ (~104) → Hb nearly fully saturated.
• In the tissues (ऊतकों में) — Low pO₂ (~40), high pCO₂, H⁺, temperature → O₂ released.
• Steep part (तीव्र भाग) — Small pO₂ fall releases much O₂ — efficient unloading.

Original diagram drawn by Simple Learning Hub, based on NCERT Fig 14.5. Report a mistake