SC CHEM 102 - Nucleic Acids (5 pages)

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Nucleic Acids

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Nucleic Acids


Lecture on Nucleic Acids

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Lecture Note
University Of South Carolina-Columbia
Chem 102 - Fundamental Chemistry Ii

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CHEM 102 Chapter 13 Lecture 20 Outline of Last Lecture I Classify Lipids II Fatty Acid Structure III Triacylglycerols and reactions of them IV Hydrolyzable and Nonhydrolyzable Lipids V Steroids Eicosanoids and Vitamins VI Protein Functions VII Amino Acids VIII Zwitterions and Peptides IX Acid sequence and constitutional isomers X Types of proteins and their functions XI Effect of temperature on proteins XII Hydrolysis of proteins Outline of Current Lecture I Nucleotides Naming and formation II Base Pairing III DNA and RNA structures IV Information flow from DNA to RNA These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute V Replication Transcription and Translation VI Protein Synthesis Current Lecture Nucleotides Nucleotides building blocks of nucleic acids Made from phosphoric acid a pentose sugar and a heterocyclic nitrogen base The pentose sugar is either ribose or deoxyribose The base and sugar makes nucleotides different from one another https www mun ca biology scarr Deoxyribose vs Ribose gif To tell if a nucleotides has ribose or deoxyribose look at the H group on the second carbon on the pentose sugar OH means it s ribose H means it is Deoxyribose There are 2 components of nucleotides Pyrimidines Cytosine Thymine in DNA and Uracil in RNA Purines Adenine and Guanine Formation of Nucleotides Dehydration reactions between a Phosphoric Acid Pentose Sugar and either a Pyrimidine or Purine http img sparknotes com figures 7 749a4182b7527e44d289a612e420f40c nucleotide gif Naming Nucleotides The first word of the name indicates the sugar and base components Replace the ending osine with the ending ine With Pyrimidines change the base to Cytidine Thymidine and Uridine When Deoxyribose is the sugar add the prefix deoxyThe second word of the name indicates the phosphate group on whichever number carbon it is on 5 monophosphate Abbreviations deoxy is a lower case d followed

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