Download Nucleic Acids PPT - Lyndhurst Schools

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Organic Compounds: Nucleic Acids
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NUCLEIC ACIDS
❁ 
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
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Nucleic Acids: Nucleotides
phosphate
group
O
O=P-O
O
nitrogen
base
5
CH2
O
N
5 carbon
sugar
C4
C3
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C1
C2
Organic Compounds: Nucleic Acids
Fundamental
Structure of
Nucleotide
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Nucleic Acids: Nucleotides
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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 1/3/17
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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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5
O
3
Nucleic Acids
DNA
3
P
5
O
1
P
5
3
2
4
1
2
3
P
C
G
4
O
5
O
P
3
5
P
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O
3
T
A
In DNA:
T always combines with A
G always combines with C
Organic Compounds: Nucleic Acids
O
5
P
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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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