Enzyme sucrase hydrolyses sucrose into

Fat is hydrolysed by enzyme lipase to yield

Which of the following statements is consistent with the function of isomerases?

The figure given shows the conversion of substrate into product by an enzyme. In which one of the four options,the components of the reaction labelled $a, b, c, \& \ d$ are identified correctly?
$(i)$ Potential energy
(ii) Transition state
(iii) Activation energy with enzyme
(iv) Activation energy without enzyme

Who coined the term $zymase$ for enzymes in yeast?

Which type of enzymes catalyze the joining of two molecules by utilizing energy derived from the pyrophosphate bond of $ATP$?