Medical
Biology
Krebs Cycle
Light Reaction
Dark Reaction
Question
Oxalosuccinic acid, an intermediary compound of Krebs cycle is a
4 carbon compound.
3 carbon compound.
5 carbon compound.
6 carbon compound.
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Solution
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Oxalosuccinic acid is formed during the fourth step of Kreb's cycle. It is formed from isocitrate which is a 6-C compound by the removal of a pair of hydrogen atoms in the presence of enzyme isocitrate dehydrogenase.

Thus, the correct answer is option D.