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Q. Which one of the following is the respiratory pigment in man?
Answer: Haemoglobin
Notes: A respiratory pigment is a molecule, such as haemoglobin in humans, that increases the oxygen carrying capacity of the blood. The four most common invertebrate respiratory pigments are haemoglobin, haemocyanin, haemerythrin and chlorocruorin.

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📌 Question Number: 21 in 33. Human Body - Respiratory System in the above course in App.