TS EAMCET Medical 2015 Paper

Identify the correct pair of answers indicating the reactions catalysed by “Isomerases” class of enzymes.
(I) Conversion of glyceraldehyde-3-phosphate to dihydroxy acetone phosphate in Calvin cycle
(II) Formation of malic acid from fumaric acid in Tricarboxylic acid cycle.
(III) Carboxylation of phosphoenol pyruvate in Hatch-Slack pathway.
(IV) Fructose-6-phosphate formation from Glucose-6-phosphate in EMP pathway