The last acceptor of electrons in $ETS$ which transfers electrons to oxygen is . . . . . . .

Which of the following is not a component of complex-$IV$ (cytochrome-$c$ oxidase)?

$A-$ $ATPase$ is a multienzyme complex containing two parts $F_0$ and $F_1$.
$R-$ The $F_1$ headpiece is a peripheral membrane protein complex and contains the site for synthesis of $ATP$ from $ADP$.

During which stage of complete oxidation of glucose is the maximum number of $ATP$ molecules formed from $ADP$?

Given below is a diagram showing $ATP$ synthesis during aerobic respiration. Replace the symbols $A, B, C, D$ and $E$ with the appropriate terms from the following list: $F_1$ particle,formation of $\Pi$,$2H^+$,inner mitochondrial membrane,$ATP$,$F_0$ particle,$ADP$.

Which of the following processes takes place in the mitochondria?