In citric acid cycle decarboxylation occurs when

Citric acid converts to

α -

ketoglutaric acid

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Succinic acid converts to malic acid

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Malic acid converts to oxaloacetic acid

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Oxaloacetic acid converts to citric acid

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is D Citric acid converts to $α -$ ketoglutaric acid
Citric acid undergoes dehydration to form cis-aconitase which then undergoes hydration reaction to form isocitrate. Isocitrate dehydrogenase enzyme catalyzes oxidative decarboxylation of citric acid into alpha-ketoglutarate. Succinate dehydrogenate catalyzes dehydrogenation of succinate into fumarate which then undergoes hydration reaction to form malic acid. Malic acid is dehydrogenated into oxaloacetate by enzyme malate dehydrogenase. Condensation of oxaloacetate with acetyl-CoA forms a citric acid. So, conversion of citric acid into alpha-ketoglutarate is decarboxylation. Thus, the correct answer is option A.

Suggest Corrections

Similar questions

C O_{2}

\begin{matrix} I . C i t r i c a c i d & \to & α - k e t o g l u t a r i c a c i d I I . S u c c i n i c a c i d & \to & M a l i c a c i d I I I . M a l i c a c i d & \to & O x a l o a c e t i c a c i d I V . α - k e t o g l u t a r i c a c i d & \to & S u c c i n y l C o - A \end{matrix}

Join BYJU'S Learning Program