Answer:
Dehydration synthesis deals with the combination of two molecules, or compounds, with the loss of water to form a large molecule (macromolecule). This process uses up energy.
Hydrolysis, the opposite of dehydration synthesis, is a chemical process that degrades another molecules with the aid of water to form a molecule with a different make up. This process gives energy. Organic hydrolysis pairs water with neutral molecules, while inorganic hydrolysis combines water with ionic molecules.
Hydrolysis degrades the raw nutrients in the macromolecules such as protein etc., dehydration synthesis consumes raw nutrients to build up this macromolecules .