Question

What is haemoglobin and haemocyanin
Distinguish between them,​

Answer 1

Hemocyanin is a respiratory protein found in certain animal's blood, much like Hemoglobin, which is another respiratory protein. ... However, Hemocyanin contains copper instead of iron, which is in Hemoglobin.

Answer 2

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Hemocyanin is a respiratory protein found in certain animal's blood, much like Hemoglobin, which is another respiratory protein. However, Hemocyanin contains copper instead of iron, which is in Hemoglobin. The copper found in Hemocyanin gives the blood of animals with that protein a blue colour instead of red.

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