<prompt> Oxaloacetate Acetyl CoA Citrate CoASHThis reaction is:ReversibleIrreversibleCan be reversed by catalaseCompetitive  <response>: B i.e. IrreversibleFormation of Citric Acid from Acetyl -COA and Oxaloacetate OAA is 1st and irreversible step of TCA, giving 7.8 K cal exergonic reactionQ 