Question

Small protein attached to outer surface of inner mitochondrial membrane which acts as mobile carrier for transfer of electrons between complex III and IV is

• A. Cyt a
• B. Cyt b
• C. Cyt c
• D. Cyt d

Answer 1

The correct option is C Cyt c

Electrons as they pass through ETS get transferred from one complex to another down the energy levels, across a proton gradient created by the electrons themselves. Electrons as they reach complex III are further accepted by cytochrome c which passes it to complex IV.

So the answer is 'Cyt c'.