Which acid of TCA cycle is connecting link with nitrogen metabolism?
A
Succinic acid
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B
Malic acid
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C
α-ketoglutaric acid
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D
Citric acid
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Solution
The correct option is Cα-ketoglutaric acid The Krebs cycle also known as tricarboxylic acid cycle (TCA) gives various intermediates for formation of biomolecules. The alpha-ketoglutarate are used in the synthesis of amino acids through nitrogen metabolism and these amino-acids take part in protein synthesis.