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  4. In single Krebs Cycle decarboxylation takes place at steps

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Q. In single Krebs Cycle decarboxylation takes place at ________ steps

MHT CETMHT CET 2017Respiration in Plants

Solution:

In Krebs’ cycle two decarboxylations occur at following steps:
$\underset{(6 - C)}{\text{Oxalosuccinate}} \xrightarrow[\text{ decarboxylase}]{\text{ Oxalosuccinate}} \underset{( 5 -C)}{\alpha - \text{ketoglutarate}} + CO_2$
$\underset{(5-C)}{\alpha - \text{ketoglutarate}} + NAD + Co-A \xrightarrow[\text{dehydrogenase}]{\alpha - \text{keto glutarate}}$
$\underset{(4-C)}{\text{Succinyl }Co- A } + NADH_2 + CO_2$