$TCA$ cycle enzymes are present in

Match the compounds given in column-$I$ with the number of carbon atoms present in them which are listed under column-$II$. Choose the answer which shows the correct combination of alphabets of the two columns.

Column-$I$	Column-$II$
$A$. Oxaloacetate	$p$. $6-C$ compound
$B$. Phosphoglyceraldehyde	$q$. $5-C$ compound
$C$. Isocitrate	$r$. $4-C$ compound
$D$. $\alpha$-Ketoglutarate	$s$. $3-C$ compound
	$t$. $2-C$ compound

The vitamin which helps in carbohydrate metabolism during glycolysis and $TCA$ cycle is

The enzyme ..... is used to catalyze the condensation of an acetyl group with oxaloacetic acid to yield citric acid.

Match the columns based on the number of carbon atoms in the compounds involved in the Krebs cycle:

Column-$I$	Column-$II$
$(a)$ $4$ $C$ compound	$(1)$ Acetyl $CoA$
$(b)$ $2$ $C$ compound	$(2)$ Pyruvate
$(c)$ $5$ $C$ compound	$(3)$ Citric acid
$(d)$ $3$ $C$ compound	$(4)$ $\alpha$-Ketoglutaric acid
	$(5)$ Malic acid

All enzymes of the $TCA$ cycle are found in the mitochondrial matrix. Exceptionally, one enzyme is located on the inner mitochondrial membrane in eukaryotes and in the cytoplasm in prokaryotes. Identify this enzyme.