Enzyme helping in oxidative decarboxylation of pyruvic acid is

Pyruvate kinase

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Pyruvic dehydrogenase

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Malate dehydrogenase

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Succinic dehydrogenase

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Solution

The correct option is B Pyruvic dehydrogenase
Pyruvic acid is the end product of glycolysis which enters Krebs' cycle by going through a link reaction using pyruvate dehydrogenase complex. The enzyme pyruvic dehydrogenase removes CO2 and hydrogen molecule from pyruvic acid which is called oxidative decarboxylation. This forms a 2C compound acetyl CoA which can enter Krebs' cycle.
So the answer is 'Pyruvic dehydrogenase'.

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Similar questions

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

Name the site(s) of pyruvate synthesis. Also, write the chemical reaction wherein pyruvic acid dehydrogenase acts as a catalyst.

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