Скачать или смотреть Unit 5: Cellular Reactions (2/3)

Dehydration Synthesis and Hydrolysis
Dehydration Synthesis: an endergonic reaction. Hydrogen and Oxygen are taken out of different polymer chains and combined to form water separately from the polymers. The remaining monomers on the polymer chains are linked together to form a larger/longer polymer. In this sense, water is taken out of the reactants, which is why we call it dehydration.
Hydrolysis: an exergonic reaction. A water molecule is split apart and the hydrogens are used to break apart a polymer link. Now the long polymer has split to form smaller ones, and the components of water were used to split the polymer into two.
Learning Objectives:
Understand the role of H2O in organic reactions
Explain how polymers are split and combined using dehydration and hydrolysis

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