01:119:115 Lecture Notes - Lecture 5: Glycosidic Bond, Maltose, Covalent Bond
15 Feb 2018
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Chapter 05 - the structure and function of macromolecules. This reaction is called a condensation reaction or dehydration reaction: when a bond forms between two monomers, each monomer contributes part of the water molecule that is lost. In hydrolysis, bonds are broken by the addition of water molecules. A hydrogen atom attaches to one monomer, and a hydroxyl group attaches to the adjacent monomer: our food is taken in as organic polymers that are too large for our cells to absorb. Within the digestive tract, various enzymes direct hydrolysis of specific polymers. An immense variety of polymers can be built from a small set of monomers: each cell has thousands of different kinds of macromolecules, these molecules vary among cells of the same individual. Sucrose is the major transport form of sugars in plants: lactose, milk sugar, is formed by joining glucose and galactose.
