Oxidative phosphorylation occurs during the process of

In oxidative photophosphorylation,the last $3$ steps are as follows: $Q \to C \to aa_3 \to O_2$. Which of the following statements is correct regarding the proton $(H^+)$ movement?

The final $H_2$ acceptor in the mitochondria is .........

How many $ATP$ molecules are produced when $2 H^+$ ions pass through the $ATP$ synthase complex?

In which stage of cellular respiration is the maximum number of $ATP$ molecules produced from $ADP$ through the complete oxidation of glucose?

The introduction of cyanide into $ATP$ synthesis becomes toxic because it $..........$