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Carbohydrates & Nucleic Acids Structure and Vocabulary.

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Presentation on theme: "Carbohydrates & Nucleic Acids Structure and Vocabulary."— Presentation transcript:

1 Carbohydrates & Nucleic Acids Structure and Vocabulary

2 Fischer Projections

3 Classification

4 D and L Sugars based on D- Glyceraldehyde

5 All D Sugars can be Degraded to D-Glyceraldehyde

6

7

8 Threo and Erythro

9 Erythro & Threo each indicate a pair of enantiomers

10 Epimers : Stereoisomers that Differ at Only One Asymmetric Center

11

12 Pyranose Formation in Glucose

13 Pyranose forms of Glucose

14 Glucose Anomers  and 

15

16 Furanose Formation  -D-Fructofuranose

17 Evolution of the Pyranose

18 Alkylation of Hemiacetal Formation of Glycosides

19

20 Protection of cis OH Groups with Acetone - Acetonides

21 Oxidize and Deprotect

22 Maltose – a Disaccaharide

23 Naming a Disaccharide

24 Sucrose – a Glucose-Fructose Dimer Linkage of 2 Anomeric Centers

25 Splendid

26 Cellulose – a Polymer of Glucose

27

28 Nucleotides of DNA

29 Base Pairing in DNA Helices

30 Double Helix

31 Replication

32 DNA Cross-linker

33 Prevents DNA from Unraveling

34 DNA Strand


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