F08-BCH361-L1

F08-BCH361-L1 - Principles of Biochemistry BCH 361 Fall...

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Unformatted text preview: Principles of Biochemistry BCH 361 Fall 2008 Petra Fromme phone 965 9028 office: PSC 307 E-mail: pfromme@asu.edu Biomolecules Living cells include very large molecules, such as proteins, nucleic acids, and polysaccharides: they are organized in a hierarchic structure Amino-acid sugars protein DNA Cell-wall polysaccharides Cell-membrane chromosome cell supramolecular macromolecules biomolecules complexes Prokaryotes and Eukaryotes Prokaryotes single-celled organisms include bacteria and cyanobacteria Eukaryotes: - contain a well-defined nucleus surrounded by a nuclear membrane can be single celled, such as yeasts or multicellular, such as animals and plants Procaryote Mitochondrion Endoplasmic reticulum Site of respiration has its own DNA Continuous membrane throughout the cell, rough part studded with ribosomes, the sites of protein Synthesis Nucleus Location of main genome; site of most DNA and RNA synthesis Organelle Function Lysosome waste degradation Golgi-Apparatus Import and export Special organelles of eucaryotic cells In Eucaryotic cells a system of microtubules hold the organelles in place Chloroplast Site of photosynthesis, contains the photosynthetic membrane system; has its own DNA Organelle Function Cell wall cell stability, morphology vacuole Storage of starch, storage of degradation products of the cells Special organelles of plant cells Five kingdoms of life Some like it hot !!!!!!Some like it hot !...
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F08-BCH361-L1 - Principles of Biochemistry BCH 361 Fall...

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