Haem protein complexes that act as oxidising agents during plant respiration are known as

Options

(a) Chlorophyll
(b) Haemoglobin
(c) Myoglobin
(d) Cytochrome

Correct Answer:

Cytochrome

Explanation:

Cytochromes are small proteins (intrinsic membrane proteins) that contains 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.