Which of the following natural substances contains iron (Fe)?
Answer
Correct Answer : d ) Myoglobin
Explanation :Myoglobin is a natural substance that contains iron. It is a small protein that is found in heart and skeletal muscles. It is an oxygen binding protein. It can temporarily provide oxygen when blood oxygen delivery is insufficient during intense muscular activity.
Iron (Fe) has atomic number 26 and is the most common element on earth by mass.
Hence, option (d) is correct.
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