<prompt> In which of the following step of TCA cycle, carbon dioxide is removed?Alpha-ketoglutarate dehydrogenaseMalate dehydrogenaseSuccinate dehydrogenaseFumarase  <response>: Ans: aAlpha-ketoglutarate dehydrogenase The two oxidative decarboxylation reactions of the TCA cycle are: 1. Isocitrate dehydrogenase 2. a-ketoglutarate dehydrogenase 