List the steps involved in breathing and the respiratory pigment present in humans.
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In vertebrates the respiratory pigment is haemoglobin, contained in the erythrocytes (red blood cells). ... 2 Any of the proteins involved in cellular respiration as components of an electron transport chain. They include the cytochromes.
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In vertebrates the respiratory pigment is hemoglobin. Hemoglobin has a molecular weight of about 68,000 and is composed of two pairs of polypeptide chains. Each chain carries an iron-containing heme group. The hemoglobin molecule is capable of transporting four oxygen molecules
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