Incorrect statement in relation to ETS in respiration
(1) Cytochrome c is a small protein attached to
outer surface of inner membrane and is a mobile
electron carrier
(2) NADH dehydrogenase oxidises NADH to release
electrons which are transferred to ubiquinone
(3) Complex VI contains two copper centres
(4) Ubiquinol receives reducing equivalents via
FADH2 that is generated during oxidation of
succinate in TCA cycle

There are only four complexes in ETS and it is complex IV which contains two copper centres along with two cytovhromes. Hence, option (3) is incorrect.

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