McqMate
| Q. |
Metal present in blood is – |
| A. | Calcium |
| B. | Zinc |
| C. | Sodium |
| D. | Iron |
| Answer» D. Iron | |
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Explanation: Iron is an essential part of the proteins that transport oxygen in the body. Hemoglobin, the oxygencanying protein in red blood cells, accounts for about two-thirds of the body's iron supply. Smaller amounts are found in myoglobin, the protein that supplies oxygen to muscles, and in enzymes needed for various biochemical reactions. |
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