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BioCoach Contents
Properties of Biomolecules
Concept 1: Monomers and Polymers
Concept 3: Lipids
   Practice (1 page)
   Review (4 pages)
Concept 4: Carbohydrates
   Review (4 pages)
Concept 5: Proteins
   Review (9 pages)
Concept 6: Nucleic Acids
   Practice (1 page)
   Review (10 pages)
Concept 1: Monomers and Polymers
Each cell assembles its own polymers by joining appropriate monomers together with the production of water.
Most biological molecules are very large and are built by assembling small molecules, or monomers, into long chains. The resulting molecules are called macromolecules, or polymers.

A process of linking monomers, called dehydration condensation, involves the removal of two hydrogen atoms and one oxygen atom to form water. One way this might happen is diagrammed above, where several generic monomers are shown with -OH groups that could be used for linking.

The animation illustrates the joining together of monomers by condensation (catalyzed by a polymerase enzyme) and the reverse process, in which added water results in hydrolysis (catalyzed by a hydrolase enzyme).