BasicBiologyto+Post-3 - Lecture 3: January 13 Todays...

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Lecture 3: January 13 Today’s Outline How do cells do the things they do? Components of cells Proteins and DNA Central Dogma Mutations Announcements Next discussion read DF pp. 67-107 Overrides I will be submitting final overrides today
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4 Groups of Biological Molecules Lipids Carbohydrates Proteins Nucleic acids
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Lipids Oils, fats, waxes--molecules that don’t dissolve well in water Diverse group--many different structures Often found in, or as part of, membranes Variety of functions Energy storage, cell structure, pigments, hormones
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Carbohydrates Sugars, starches, etc. Polysaccharides-single units linked together Variety of functions Short-term energy, longer term energy storage, structural support, building blocks of other molecules (fats, amino acids)
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Proteins Made of a long chain of amino acids Each amino acid is called a monomer and is linked to form the whole protein (called a polymer or polypeptide) Serve more types of functions in cells than any other type of molecule
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Figure 3-5 Polymer Polymerization (bonding together of monomers) Each monomer represents an amino acid Building a Protein
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Figure 3-10 TATA-box binding protein Porin Pyrophosphatase Globular Doughnut shaped Butterfly shaped Proteins Come in All Shapes
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Protein Functions Defense--destruction of disease causing organisms (viruses and
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This note was uploaded on 02/17/2011 for the course BIOLOGY 118 taught by Professor Spillane during the Winter '10 term at University of Michigan.

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BasicBiologyto+Post-3 - Lecture 3: January 13 Todays...

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