Select the correct option regarding the relationship between the components of aerobic respiration.

Match the processes involved in aerobic respiration given in Column-$I$ with their occurrence in the cell from Column-$II$ and choose the correct option.

Column-$I$	Column-$II$
$i$. Glycolysis	$b$. Cytoplasm
$ii$. Krebs cycle	$a$. Mitochondrial matrix
$iii$. $ETS$	$c$. Inner mitochondrial membrane

What are the main steps in aerobic respiration? Where does it take place?

Match List-$I$ with List-$II$ :

List-$I$ (Process)	List-$II$ (Location)
$A$. Glycolysis	$I$. Mitochondrial Membrane
$B$. $ETS$	$II$. Mitochondrial Matrix
$C$. Accumulation of protons	$III$. Cytoplasm
$D$. Krebs' cycle	$IV$. Intermembrane space

Choose the correct answer from the options given below :

Read the following statements and choose the set of correct statements :
$(A)$ In fermentation,the reducing agent is $NADH + H^+$.
$(B)$ There are three major ways in which different cells handle pyruvic acid produced by glycolysis.
$(C)$ The complete oxidation of pyruvate occurs by the stepwise removal of all the hydrogen atoms,leaving two molecules of $CO_2$.
$(D)$ The $NADH$ synthesised in glycolysis is transferred into the mitochondria and undergoes oxidative phosphorylation.
$(E)$ Complex-$IV$ of $ETS$ refers to cytochrome $c$ oxidase complex.
Choose the most appropriate answer from the options given below :

In the hexose monophosphate shunt ($HMP$ shunt),the number of $CO_2$ molecules evolved is: