The connecting link between respiration ($TCA$ cycle) and protein synthesis is:

Match the enzyme involved in the Krebs cycle given in column-$I$ with the reactions they catalyse given in column-$II$. Choose the correct option.

Column $I$	Column $II$
$i.$ Isocitrate dehydrogenase	$a.$ Citrate $\rightarrow$ Cis-aconitate
$ii.$ Fumarase	$b.$ Succinate $\rightarrow$ Fumarate
$iii.$ Aconitase	$c.$ Fumarate $\rightarrow$ Malate
$iv.$ Succinate dehydrogenase	$d.$ Isocitrate $\rightarrow$ Oxalosuccinic acid

All enzymes of the $TCA$ cycle are located in the mitochondrial matrix, except for one which is located in the inner mitochondrial membrane in eukaryotes and in the cytosol in prokaryotes. This enzyme is.....

Describe the process occurring in the matrix of mitochondria.

How many $CO_2$ molecules are produced in the Krebs cycle when one molecule of pyruvic acid enters and is oxidized completely?

Describe: Tricarboxylic acid cycle.