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Write the biologically importance of coordination compounds. |
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Answer» Solution :Biological important of coordination compounds: (i) A red blood corpuscles (RBC) is composed of heme group, which is `Fe^(2+)`- Porphyrin complex. It plays an important role in carrying oxygen from LUNGS to tissues and carbon dioxide from tissues to lungs. (ii) Chlorophyll, a GREEN pigment present in green plants and algae, is a coordination complex containing `Mg^(2+)` as central metal ion surrounded by a modified Porphyrin ligand called corrin ring. It plays an important role in photosynthesis, by which plants converts `CO_(2)` and water into carbohydrates and oxygen. (iii) Vitamin `B_(12)` (CYANOCOBALAMINE) is the only vitamin consist of metal ion. It is a coordination complex in which the central metal ion is `Co^(+)` surrounded by Porphyrin like ligand. (iv) Many enzymes are known to be metal complexes, they regulate biological processes. For example, Carboxypeptidase is a protease enzyme that HYDROLYTIC enzyme important in digestion, contains a zinc ion coordinated to the protein. |
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