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Unformatted text preview: Enantiomers are molecules that are mirror images of each other. The molecules shown below are enantiomers. Condensation In order to bond the two molecules shown below together, you must first remove a hydrogen from each one. This is necessary because carbon has a maximum of 4 bonds and hydrogen can have only one. In biological systems, macromolecules are often formed by removing H from one atom and OH from the other (see the diagram below). The H and the OH combine to form water. Small molecules (monomers) are therefore joined to build macromolecules by the removal of water. The diagram below shows that sucrose (a sugar) can be produced by a condensation reaction of glucose and fructose. Sucrose: This is called a condensation or dehydration reaction. Energy is required to form the bond....
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