MCQ
The haem protein complexes, which act as oxidizing agents are known as
  • A
    Haemoglobin
  • B
    Myoglobin
  • C
    Chlorophyll
  • Cytochrome

Answer

Correct option: D.
Cytochrome
d
Cytochromes are small proteins (intrinsic membrane proteins) that contain a cofactor, haem, which holds an iron atom. The iron carries electrons and cycles between $+2$ and $+3$ oxidation states. These form a part of electron transport chain in mitochondria and chloroplast and act as an electron transporter or electron acceptor in respiration and photosynthesis

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