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Q. |
Haemoglobin in the blood is a complex protein rich in - |
A. | Iron |
B. | Silver |
C. | Copper |
D. | Gold |
Answer» A. Iron | |
Explanation: Hemoglobin is the iron- containing oxygen-transport metalloprotein in the red blood cells of all vertebrates. Iron is an essential part of hemoglobin. When iron stores are low, both hemoglobin and red blood cell production slows, causing anemia. |
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