During cellular respiration, pyruvate undergoes oxidative decarboxylation in

cytoplasm

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mitochondrial matrix

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inner mitochondrial membrane

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outer mitochondrial membrane

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Solution

The correct option is B mitochondrial matrix
Pyruvate formed in glycolysis undergoes oxidative decarboxylation in the mitochondrial matrix. It is a complex set of reactions catalysed by pyruvate dehydrogenase enzyme. Oxidative decarboxylation of pyruvate results in the formation of acetyl CoA which starts Krebs cycle.

Suggest Corrections

Sr.no	Column I	Sr.no	Column II
A.	TCA cycle	(i)	Inner mitochondrial membrane
B.	$F_{0} - F_{1}$ particles	(ii)	Hans Krebs
C.	End product of glycolysis	(iii)	Oxidative decarboxylation
D.	Pyruvate dehydrogenase	(iv)	Pyruvic acid

Column-I	Column-II Site of pathway
(A) Fatty acid oxidation	(p) Cytoplasm
(B) Pyruvate oxidation	(q) Mitochondrial matrix
(C) Fatty acid synthesis	(r) Mitochondrial inner membrane
(D) Pentose phosphate pathway	(s) Glyoxysome