How are carbohydrate polymers formed?

(a) by hydrolysis
(b) by dehydration synthesis
(c) by replication
(d) by transcription

an active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. the substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme