Download Notes: Unit 1—Nucleic Acid

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Notes: Unit 1—Nucleic Acid
(1) What is a nucleic acid?
• Type of Biomolecule
• Means: Acid stored in the nucleus
– Not all organisms store their nucleic acid in a
nucleus
– Eukaryotic = Nucleic Acid in Nucleus
– Prokaryotic = Nucleic Acid NOT IN Nucleus
(2) Elements
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Carbon (C)
Hydrogen (H)
Oxygen (O)
Nitrogen (N)
Phosphorus (P)
(3) Monomer
• Nucleic Acid Monomer:
– Nucleotide
(4) Polymer
• Nucleic Acid Polymer:
– DNA
– RNA
(5) Types of Nucleic Acids
• DNA = DeoxyriboNucleicAcid
– Double Stranded Helix
– Sugar in Nucleotide = Deoxyribose
– Nitrogenous Bases = A , T , G , C
• RNA = RiboNucleicAcid
– Single Stranded Helix
– Sugar in Nucleotide = Ribose
– Nitrogenous Bases = A , U , G , C
(6) Function
• Major:
– Contains Genetic Information & Heredity
– Contains Instructions to make cells function
– Contains Instructions for making Proteins
• Minor:
– There is no MINOR function.
– IT’S YOUR DNA!!
(7) Examples
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All living cells contain DNA!
Bacteria
Protozoa from Pond Water
Your Cells
Fruits and Vegetables
• DNA Requirements:
– Phosphorus
– Sugar
– Nitrogen