Iron is present in _ and _.
Correct answer: A. Haemoglobin, Ferritin
- A. Haemoglobin, Ferritin
- B. Myoglobin, Ferrous
- C. Haemoglobin, Ferrous
- D. Both (a) and (c)
Explanation
-Respiratory pigment Haemoglobin has a quaternary structure where each polypeptide has a heme group with iron in the center. -Ferritin is an iron storing blood cell globular protein. The ferritin which does not attach with iron is known as apoferritin.
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Proteins are classified by shape, composition and structure, from primary amino acid sequence to secondary, tertiary and quaternary organisation, and their biological roles are linked to this structure. Enzymes are examined as protein biocatalysts, including active sites, substrate specificity, activation energy, cofactors and factors affecting activity.
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