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Question
The respiratory pigment with least oxygen carrying capacity is
The respiratory pigment with least oxygen carrying capacity is
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Solution
The correct option is C Haemoerythrin
There are three classes of primary respiratory pigments are haemoerythrins, haemocyanins and haemoglobins. A fourth pigment, chlorocruorin, is an iron-containing protein which is found in only a few polychaete worms. Haemerythrin is an iron-containing respiratory pigment found in some marine invertebrates. These transport proteins intracellularly in many shelled marine animals (Brachiopods) and marine annelids (Polychaetes). The oxygen-binding properties of haemerythrin differ from those of haemoglobin. The iron to oxygen ratio is 2:1 for haemerythrin and 1:1 for haemoglobin. Haemorythrin is violet in color in the oxygenated form and becomes colourless with deoxygenation. Thus, the correct answer is option C.
There are three classes of primary respiratory pigments are haemoerythrins, haemocyanins and haemoglobins. A fourth pigment, chlorocruorin, is an iron-containing protein which is found in only a few polychaete worms. Haemerythrin is an iron-containing respiratory pigment found in some marine invertebrates. These transport proteins intracellularly in many shelled marine animals (Brachiopods) and marine annelids (Polychaetes). The oxygen-binding properties of haemerythrin differ from those of haemoglobin. The iron to oxygen ratio is 2:1 for haemerythrin and 1:1 for haemoglobin. Haemorythrin is violet in color in the oxygenated form and becomes colourless with deoxygenation. Thus, the correct answer is option C.
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