alleryThe biological molecule HAEMOGLOBIN contains which metal at its centre?
ACopper (Cu) ion at the centre
BMagnesium (Mg) ion at the centre
CIron (Fe) in a porphyrin ring
DCobalt (Co) at the centre
Answer & Solution
Correct answer: C. Iron (Fe) in a porphyrin ring
**Haemoglobin:** iron-porphyrin (haem) complex, carries O2 in vertebrate blood.
**CHLOROPHYLL:** Mg-porphyrin (plant photosynthesis).
**VITAMIN B12:** cobalt-corrin.
Three iconic biological coordination compounds.
Keep practising The d- and f-Block Elements & Coordination Compounds
Browse all The d- and f-Block Elements & Coordination Compounds questions for AP Intermediate 2nd Year, or explore more Chemistry topics.
Related questions
Tap every failing of Valence Bond TheorySort each ligand by how many donor atoms it usesThree of these are wrong. Find the one that holds.The IUPAC name of K3[Fe(CN)6] is:The biological molecule HAEMOGLOBIN contains which metal at its centre?Complete the definition of oxidation numberEthylenediamine (en) is best described as a:Chelate or ambidentate?