निम्नलिखित में से किस प्राकृतिक पदार्थ में लौह (Fe) विद्यमान होता है? Which of the following natural substance contains iron (Fe)?
Verified Answer
A. क्लोरोफिल / Chlorophyll
B. कोलैजन / Collagen
C. केराटिन / Keratin
D. मायोग्लोबिन / Myoglobin
Explanation:
Myoglobin is a protein found in muscle tissue that binds oxygen. It contains a heme group, which has an iron atom at its center, responsible for binding oxygen. Chlorophyll contains magnesium, while collagen and keratin are structural proteins that do not contain iron.