1/3/17 Organic Compounds: Nucleic Acids 1

1/3/17 Organic Compounds: Nucleic Acids 2

1/3/17 Organic Compounds: Nucleic Acids 3

N U C L E I C A C I D S ❁  nucleic acids – large complex organic

molecules composed of carbon, oxygen, hydrogen, nitrogen, & phosphorous

❁  Role/Function: Store & transmit genetic info responsible for life

❁  polymers of monomers known as nucleotides

❁  nucleotide – unit of a nucleic acid that is

made up of a 5 carbon sugar,

phosphate group, & a

nitrogenous base

Fundamental Structure of

Nucleotide

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OO=P-O O

phosphate group

N

CH2

O

C1C4

C3 C2

5

5 carbon sugar

nitrogen base

Nucleic Acids: Nucleotides

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Nucleic Acids: Nucleotides

Nucleic Acids: Nucleotides ❁  Nucleotides Include:

❁  Phosphate Group

❁  Pentose Group (5-Carbon Sugar)

❁  Nitrogenous Bases

❂  adenine (A)

❂  thymine (T) DNA only

❂  uracil (U) RNA only

❂  cytosine (C)

❂  guanine (G)

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Nucleic Acids: Types ❁  3 Types:

❁  Ribonucleic Acid

(RNA – Single Strand)

❁  Deoxyribonucleic Acid

(DNA – Double Helix)

❁  Adenosine Tri Phosphate (ATP)

❁  composed of Long chains of Nucleotides linked by Dehydration Synthesis

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Nucleic Acids: RNA ❁  Ribonucleic Acid (RNA) – nucleic acid made

of a single chain of nucleotides that act as a messenger between DNA & ribosome & carries out process by which proteins are made from amino acids

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Nucleic Acids: DNA ❁  Deoxyribonucleic Acid (DNA) – nucleic acid

that stores & transmits genetic information from one generation of an organism to the next by coding for the production of a cell’s proteins

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Nucleic Acids: DNA

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P

P

P

O

O

O

1

23

4

5

5

3

3

5

P

P

PO

O

O

1

2 3

4

5

5

3

5

3

G C

T A

In DNA: T always combines with A G always combines with C

Nucleic Acids DNA

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Nucleic Acids: RNA Vs. DNA

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Nucleic Acids: RNA Vs. DNA

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Nucleic Acids: ATP ❁  ADENOSINE TRI PHOSPHATE (ATP)

❁  high energy Nucleic acid used by our cells for fuel

❁  All foods are converted to this to be used as energy by our cells.

❁  Made up of :

❁  5 Carbon sugar

❁  Nitrogen Base

❁  Phosphate group

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Nucleic Acids: ATP

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Nucleic Acids & Protein

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