question_answer

In oxidative photophosphorylation, the last 3 steps are as follows [Orissa JEE 2004] \[Q\to C\to a{{a}_{3}}\to {{O}_{2}}\]

A) \[Q\to C\] is \[{{H}^{+}}\] absorbing site

B) \[a{{a}_{3}}\to {{O}_{2+}}{{H}^{+}}\] yielding site

C) \[Q\to C\] is \[{{H}^{+}}\] yielding site and \[a{{a}_{3}}\to {{O}_{2}}\] is \[{{H}^{+}}\] absorbing site

D) No \[{{H}^{+}}\] is absorbed or released