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Questions and Answers
Where does heme biosynthesis take place?
Where does heme biosynthesis take place?
- Mature red blood cells
- Hepatocytes
- Erythrocyte-producing cells in the bone marrow (correct)
- Spleen
Which type of porphyrins are normally important for humans?
Which type of porphyrins are normally important for humans?
- Type IV
- Type I
- Type III (correct)
- Type II
Which metal ions readily bind to porphyrins?
Which metal ions readily bind to porphyrins?
- Copper and zinc ions
- Ferrous and ferric ions (correct)
- Calcium and magnesium ions
- Sodium and potassium ions
Which side chains are present in Protoporphyrin IX?
Which side chains are present in Protoporphyrin IX?
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What percentage of heme proteins is synthesized by hepatocytes?
What percentage of heme proteins is synthesized by hepatocytes?
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