NucleicAcids_and_DNA-_SPRING_2011

NucleicAcids_and_DNA-_SPRING_2011 - February 10, 2011...

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February 10, 2011 Science Headlines Nucleic Acids
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Nucleic Acids I. The last of the four types of macromolecules! The other three? A. Polysaccharides – made up of sugars; includes starch, glycogen, cellulose and chitin B. Lipids (fats) – includes triglycerides, phospholipids, sterols and waxes C. Proteins – made up of amino acids; large and complex; involved in most reactions of life playing various roles as enzymes, messengers, hormones, transport molecules (like hema- D. Nucleic acids – made up of nucleotides
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II. Nucleotides – have two major roles A. Building blocks for genetic material, DNA and RNA B. Form ATP -- the “energy” molecule *** “ATP is to life what money is to shopping!!” ATP is the energy source for most of life’s reactions! III. Structure of nucleotides A. They have three parts: 1. A 5-carbon sugar (either r ibose or d eoxyribose) with a 2. phosphate group and a … 3. “base ”– (only four of these are the “biggies”)
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Sugar Phosphate Group (PO 4 ) One of four bases B. The three major parts of a nucleotide: These
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NucleicAcids_and_DNA-_SPRING_2011 - February 10, 2011...

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