Class 11 · Breathing and Exchange of Gases

Oxygen Dissociation Curve & Its Sigmoidal Pattern — NEET Biology

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Define oxygen dissociation curve. Can you suggest any reason for its sigmoidal pattern?

NCERT Biology · Class 11 · Chapter 14 · Paragraph 54
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Assertion (A): Environmental conditions affect haemoglobin’s affinity for oxygen. Reason (R): In tissues, low pO2 and high pCO2 conditions favour dissociation of oxygen from oxyhaemoglobin.

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