A) yellow
B) lipid soluble quinine
C) energy storing compound
D) all of the above
Correct Answer: B
Solution :
Cytochromes are proteins with characteristic strong absorption of visible light, due to their iron-containing haeme prosthatic group. Mitochondria contains three classes of cytochromes designated as, a, b and c. Each type of cytochrome in its reduced state has three absorption bands in the visible range. Ubiquinone (also called coenzyme-Q) is a lipid soluble benzoquinone with a long isoprenoid side chain. Ubiquinone can accept one electron to become semiquinone radical or two electrons to form ubiquinol \[(Q{{H}_{2}})\]. ATP is an energy storing compound of cell. It is also called as energy currency of the cell.
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