MCQ
Final electron acceptor in $ETS$ is
  • A
    ${H_2}O$
  • ${O_2}$
  • C
    $Cyt$ ${a_3}$
  • D
    $Cyt$ $a$

Answer

Correct option: B.
${O_2}$
b
(b) The oxygen is the terminal acceptor of electrons which forms a water molecule in presence of protons in $ETS$

$\left( {\frac{1}{2}{O_2} + 2{e^ - } \to {O^{ - 2}},\,2{H^ + } + {O^{ - 2}} \to {H_2}O} \right)$

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