Question

a respiratorary pigment haemoglobin present in RBC act as
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Answer 1

Answer:

In vertebrates the respiratory pigment is haemoglobin, contained within the erythrocytes (red blood cells). ... Each hemoglobin binds to four oxygen molecules and carries oxygen from lungs to tissues. It also helps within the transportation of carbonic acid gas, hydrogen ions back to the lungs from the tissues.

Explanation:

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Answer 2

Hemoglobin

Explanation:

• Hemoglobin is a protein found in the red blood cells that carries oxygen in the body.
• It also gives red color to the blood.
• It has two parts the heme and the globin, heme contains iron and transports oxygen from lungs to the tissues.
• It also takes carbon dioxide from the tissues to the lungs.
• Four heme groups surrounding a globin group forming a tetrahedral structure.