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Biochemistry: Macromolecules Part 3

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Presentation on theme: "Biochemistry: Macromolecules Part 3"— Presentation transcript:

1 Biochemistry: Macromolecules Part 3
AP Biology Biochemistry: Macromolecules Part 3

2 DNA vs. RNA nucleotides Remember, DNA is long term; RNA is temporary

3 Nucleic Acids (DNA)

4 Nucleic Acids (RNA)

5 Nucleotides

6 Complimentary Base Pairing

7 See the HYDROGEN bonds? Remember, these are very important bonds.

8 Nucleotide sequence is important! Remember, DNA will make proteins.

9 Dehydration and Hydrolysis Reactions
Short polymer Unlinked monomer Dehydration removes a water molecule, forming a new bond Longer polymer Dehydration reaction in the synthesis of a polymer Hydrolysis adds a water molecule, breaking a bond Hydrolysis of a polymer

10 5th Carbon of the Sugar holds the phosphate
5th Carbon of the Sugar holds the phosphate. 3rd Carbon is the open bond. Phosphate of the next nucleotide bonds at the 3rd carbon.

11 Phosphodiester Bonds of Nucleic Acids
New strand 5¢ end Sugar Base Phosphate 3¢ end Nucleoside triphosphate

12 DNA Double Helix Structure

13 Watson and Crick

14 Blueprint vs. Protective Cap
DNA Double Strand: ____________________________________ ______ Important “Blueprint” sequence ______ Protective “cap” sequence

15 Genes and Evolution

16 The Phosphorus Cycle and Nucleic Acids and ATP
Rain Geologic uplift Weathering of rocks Plants Runoff Consumption Sedimentation Plant uptake of PO43– Soil Leaching Decomposition

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