CHY 204 Lecture Notes - Lecture 4: Metabolome, Coenzyme A, Stereoisomerism
16 Sep 2016
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Document Summary
Lipids are more complex in terms of the constituents; repetitive structures. Genomes are millions of base pairs in size. Most of the cell is water: 70% of the cell is water. More rna then dna because rna is in ribosomes. Lipids form the basis of the cell membrane. Include things like amino acids, sugars, nucleic acids. Genome: entire complement of genetic information of an entire cell. 3 dimensional structure of biomolecules is extremely important. Stereoisomers: molecules with the same order of bonding but different 3d spatial relationships. Different configurations with a fixed spatial arrangement of atoms. Diastereomers: have different physical and chemical characteristics, non mirror images. Chiral molecule: rotated molecule cannot be superimposed on its mirror image. Achiral molecule: rotated molecule can be superimposed of its mirror image. Function of biomolecules: chemical composititon, configuration, conformation. If crystal can be made, then x-ray crystallography gives precise static position of molecular arrangements. Nmr gives positions in solution (don t need a crystal)
