What IS DNA anyway?

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What IS DNA anyway?

• Do Now
• 1. Pass up Pectinase Lab
• 2. Fill in the chart you have in todays notes

Macromolecule Carbohydrate Protein Nucleic Acid Lipid
Monomer Monosaccharide Amino acids NO MONOMERS
Monomer structure 5-6 atom ring, 121 ratio of CHO Y shape. 20 different types. 2 peptide bonds N/A
Types Mono-, di-, and poly- versions Structural proteins (i.e. hair) enzymes Waxes, fats, oils, etc. ALL HYDROPHOBIC
Functions Store energy, cellulose in plant cell walls Many functions, i.e. digestion. Energy storage (long term) CELL MEMBRANES
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DNAs Basic Structure isnt Complex

• Just like polysaccharides are long chains of
• And proteins are 1 or more long chains of
• Nucleic Acids are long chains of
• NUCLEOTIDES

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Nucleotides The Subunits of Nucleic Acids
A, C, G, T, U
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DNA RNA Are Made Up of Nucleotides
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This model animation shows approximately 40
nucleotides arranged in a double helix
(2-stranded spiral.) DNA is a chemical that
stores information. Its like a hard drive.
Computers store information as 1s and 0s. DNA and
RNA store information as As, Ts, Gs, and
Cs. Just like an iPod stores your favorite
songs, DNA stores your species favorite
biological instructions.
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• DNA stores important information
• RNA Processes and
• transfers information

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DNA RNA The 2 types of Nucleic Acids
DNA RNA
Monomer Nucleotides Nucleotides
strands 2 1
Function Store Information Process Information
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Macromolecule Analogy

• An analogy demonstrates a relationship between 2
  things.
• Example Cat is to fur as fish is to _____.
• The correct answer is scales, because fur is on
  the outside of a cat, and scales are on the
  outside of a fish.
• In an analogy, the relationship between the two
  words in each pair is the same

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Macromolecules in Organisms are Like the Parts of
a Computer

• Complete the table by identifying the
  macromolecules and computer parts that have the
  same functions.

Function Macromolecule Computer
Provide Energy
Store Information
Process Information
Process things from input to output
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Wrap Up

• What are nucleic acids made of?
• What element do nucleotides have that other
  monomers dont
• What do nucleic acids do?
• What are the two types of nucleic acids?
• Homework Read p. 59 Nucleic Acids