Lecture_5_4_09 - Chapter 24: Synthetic and Biologial...

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Unformatted text preview: Chapter 24: Synthetic and Biologial Polymers Biological Membranes Amphiphilic lipids form membrane Polar head group and non-polar tail interact to minimize energy by maximizing hydrophobic and hydrophillic interactions Lipids tend to form a bilayer driven by entropy Proteins can be found on or in membranes (Singer-Nicholson fluid mosaic model) Membrane allows cell to keep inside and outside environments distinct Transport through a Membrane Membrane transport can occur through lipids or through proteins Water transport occurs through aquaporins Change in osmotic pressure can result in cell shrinking or swelling Carbohydrates As name suggests, these can be thought of as hydrates of carbon [C x (H 2 O) x or C x H 2x O x ] Nomenclature: Commonly end in -ose or are referred to as saccharides Carbohydrates can exist as monomers, dimers, oligomers, and polymers Monosaccharides Glucose: formula is C 6 H 12 O 6 Chain form is shown at right for D-...
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This note was uploaded on 02/26/2012 for the course CHEM 108 taught by Professor Dr.brennan during the Spring '09 term at Binghamton University.

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Lecture_5_4_09 - Chapter 24: Synthetic and Biologial...

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