alleryThe respiratory PIGMENT in human blood that carries oxygen is:
AChlorophyll
BMelanin
CMyoglobin
DHaemoglobin
Answer & Solution
Correct answer: D. Haemoglobin
1. HAEMOGLOBIN is the red iron-containing pigment in red blood cells.
2. Each Hb has 4 haem groups → can carry 4 O₂ molecules.
3. Anaemia = low Hb count → reduced oxygen transport.
_Source: syllabus Science Ch 5 §5.3.2 Blood and Pigments_
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