BIO 201 Lecture Notes - Lecture 5: X-Ray Crystallography, Base Pair, Nucleic Acid Double Helix
12 Feb 2017
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Document Summary
Carboxylic acid at one end (cooh) attached to chain r (r = (ch2)x) Hydrophobic regions will interact via van der waals. The longer the chains, the higher the melting temperature will be due to more interactions. Saturated: all c-c single bonds straight but flexible. Unsaturated: at least one c=c double bond removes 2 h causes kink in chain bent and rigid. Unsaturated fat turned saturated gone wrong (health wise) Has c=c but doesn"t have kink can line up. Side effect of chemical hydrogenation pump hydrogen into oil until it becomes saturated. Contribute to heart disease like saturated fats but at a higher rate. High tm due to van der waals. 3 fatty acid chains bound to single glycerol backbone get 3h2o. Polar head (polar molecule + phosphate + glycerol backbone) Contains info to build and maintain cells. Contains genetic info but not storage form. Dna transcripts to rna translates to proteins. Proteins directly determines the appearance of cells/organisms (phenotype)
