Iron is present in all of the following except_______________?
Correct answer: B. Pyruvate kinase
- A. Myoglobin
- B. Pyruvate kinase
- C. Catalase
- D. Cytochrome
Explanation
Myoglobin, cytochromes and catalase contain heme iron for oxygen binding or electron and peroxide reactions. Pyruvate kinase is a glycolytic enzyme that does not contain iron as a prosthetic group.
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