SCIENCE
ZOOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Its red colour
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Presence of iron
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Its ability to combine reversibly with oxygen
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Presence of basic protein globin
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Detailed explanation-1: -A characteristic feature of haemoglobin is the reversible union with oxygen. It binds with oxygen and forms oxyhaemoglobin. Haemoglobin is the iron-containing, oxygen-transport protein in the red blood cells of all vertebrates.
Detailed explanation-2: -Haemoglobin comprises four globin chains, each containing a haem molecule which reversibly binds to oxygen. Binding of oxygen to haem alters oxygen affinity by inducing structural changes in the adjacent globin chains.
Detailed explanation-3: -Hemoglobin is a two-way respiratory carrier, transporting oxygen from the lungs to the tissues and facilitating the return transport of carbon dioxide. In the arterial circulation, hemoglobin has a high affinity for oxygen and a low affinity for carbon dioxide, organic phosphates, and hydrogen and chloride ions.
Detailed explanation-4: -It contains iron, which allows it to transport oxygen. Each hemoglobin molecule can bind up to four oxygen molecules. This way, it can transport the oxygen from the lungs to the tissues that need it.