Nucleic acids information stages presentation.pptx

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1. Nucleic Acids Information storage

2. Nucleic Acids Function: store & transmit genetic information Examples: RNA (ribonucleic acid) (rRNA, mRNA, tRNA) DNA (deoxyribonucleic acid) ATP (adenosine triphosphate) Supplies energy for synthetic reactions and for other energy-requiring processes in cells Structure: monomers = nucleotides Polymers = polynucleotides (DNA, RNA)

3. Nucleotides 3 parts nitrogen base (C-N ring) pentose sugar (5C) ribose in RNA deoxyribose in DNA phosphate (PO 4 ) group

4. RNA & DNA RNA single nucleotide chain DNA double nucleotide chain N bases bond in pairs across chains spiraled in a double helix

5. Nitrogenous Base

6. Nucleic polymer Backbone sugar to PO 4 bond new base added to sugar of previous base polymer grows in one direction N bases hang off the sugar-phosphate backbon e PHOSPHODIESTER LINKAGE

7. ATP Adenosine triphosphate Adenosine Composed of adenine and ribose Triphosphate 3 phosphate groups attached to each other and the ribose ATP = High energy molecule -supplies energy for muscle contraction and nerve impulses ADP = Lower energy molecule (diphosphate) + +

8. Nucleic acids Structure / monomer nucleotide Function information storage & transfer Examples DNA, RNA

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