BIO 201 Study Guide - Midterm Guide: Differential Centrifugation, List Of Prison Break Characters, Glyoxysome

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Self replication: copy itself, and able to pass hereditary material to its offspring. Table of proteins and nucleic acids comparisons, refer to lecture. The miller-urey experiment: amino acids are produced under inorganic environment. Rna is less stable than dna, which may be the reason why we evolve dna. Rna world hypothesis: rna was the first hereditary material in the first life forms on. Without enzymes, protocells can replicate itself in the lab. Protocells are non-living because they cannot transduce energy from outside. Cell theory: all living organisms are made up of cells; the cell is the basic structural unit of life; all cells come from pre-existing cells. Bacteria: peptidoglycan cell wall and plasma membrane, no membranous organelles, small, similar to archaea. Gram-: stain pink, double membrane, harder to cure if infected. Membranous organelles, larger, no peptidoglycan (no cell wall to increase membrane fluidity), cytoskeleton (provide structural support, make cell stable)