Special kind of protein containing iron is called as _________ ?
Correct answer: B. Hemoglobin
- A. Hormones
- B. Hemoglobin
- C. Red blood cell
- D. White blood cell
Explanation
Hemoglobin is an iron-containing conjugated protein because its globin protein is combined with haem groups containing iron. Students may choose a red blood cell because red blood cells contain hemoglobin, but the question asks for the protein itself.
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