Match the entries in Column I and Column II.
| Column I | |
| Column II | |
| P. Immunoglobulin G | 1. Hemoprotein |
| Q. Casein | 2. Flavoprotein |
| R. Succinate dehydrogenase | 3. Phosphoprotein |
| S. Hemoglobin | 4. Glycoprotein |
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