CHXII09:COORDINATION COMPOUNDS
321909
Coordination compounds have great importance in biological systems. In this context which of the following statements is incorrect?
1 Cyanocobalamin is \({{\text{B}}_{{\text{12}}}}\) and contains cobalt
2 Haemoglobin is the red pigment of blood and contains iron
3 Chlorophylls are green pigments in plants and contain calcium
4 Carboxypepridase - A is an exzyme and contains zinc.
Explanation:
The chlorophyll molecule plays an important role in photosynthesis, contain porphyrin ring and the metal \(\mathrm{Mg}\) not \(\mathrm{Ca}\).