Q3 · CSIR-NET Chemistry, June 2021
Paper: CSIR-NET June 2021 · Subject: Inorganic Chemistry · Chapter: Bioinorganic Chemistry · Topic: Copper Proteins · Marks: 2 · Difficulty: Medium
Match the iron and copper proteins with biological function in the table below: | Iron protein | Copper protein | Biological function |
|---|
| A | Hemerythrin | i | Azurin | X | Oxygenase |
| B | Cytochrome $\mathrm{P_{450}}$ | ii | Hemocyanin | Y | Electron transfer |
| C | Rieske protein | iii | Tyrosinase | Z | $\mathrm{O}_{2}$ transport |
(a)A-ii-Z, B-iii-X,C-i-Y
(b)A-ii-Z, B-i-X, C-iii-Y
(c)A-iii-Y, B-i-Z,C-ii-X
(d)A-i-Y, B-iii-Z, C-ii-X
Answer
Answer: A ✓ checked by 4AB · confidence high
Explanation
Hemerythrin/hemocyanin – O₂ transport (A-ii-Z); P450/tyrosinase – oxygenase (B-iii-X); Rieske/azurin – electron transfer (C-i-Y) (a).
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