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Questions
Discuss briefly, giving an example of the role of coordination compounds in biological systems.
Discuss briefly the role of coordination compounds in biological systems.
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Solution
Coordination compounds are of great importance in biological systems. The pigment responsible for photosynthesis, chlorophyll, is a coordination compound of magnesium. In the human biological system, several coordination compounds play important roles.
For example, haemoglobin, the red pigment of blood which acts as oxygen carrier is a coordination compound of iron. Vitamin B12, cyanocobalamine, the anti-pernicious anaemia factor, is a coordination compound of cobalt. Among the other compounds of biological importance with coordinated metal ions are the enzymes like, carboxypeptidase A and carbonic anhydrase (catalysts of biological systems).
Notes
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