BIOL 1001 Lecture Notes - Lecture 5: Dehydration Reaction, Condensation Reaction, Monomer

• School: Memorial University
• Department: Biology
• Course: BIOL 1001
• Professor: Margaret Caldwell

Document Summary

3. 2 classes of organic molecules and macromolecules. All forms of life have organic molecules that fall into 4 categories: lipids, carbohydrates, nucleic acids. The last three are often found as polymers. Polymers: large molecules formed by linking together many monomers: monomer: smaller molecules/building blocks. Structure and function of each type of macromolecule depends on the nature of its monomer, the number of monomers linked together and the 3d way in which the monomers are linked. Condensation reaction: two or more molecules combine into a larger one, with the loss of small molecules. Dehydration reaction: condensation reaction in which the lost molecule is water: the length of a polymer can be extended repeatedly with additional dehydration reactions. Human dna occurs in polymers with millions of monomer units. Dehydration and hydrolysis reactions are catalyzed by enzymes. 3. 3 carbohydrates include simple sugars and polymers composed of sugar. Carbohydrates are composed of carbon, hydrogen and oxygen atoms.