Q. Which one of the following is a conjugated protein?
Bihar CECEBihar CECE 2007Biomolecules
Solution:
Conjugated proteins on hydrolysis give a non protein portion alongwith $\alpha$-amino acid. The non-protein portion is called prosthetic group.
Protein
Prosthetic group
Phosphoprotein
Lipid (eg, lecithin)
Glycoprotein
Sugar
Chromoprotein
Colouring matter such as red coloured protophyrin
Since, all of them have non-protein part hence, all of them are conjugated protein.
| Protein | Prosthetic group |
|---|---|
| Phosphoprotein | Lipid (eg, lecithin) |
| Glycoprotein | Sugar |
| Chromoprotein | Colouring matter such as red coloured protophyrin |