BIL 150_09-11-08

BIL 150_09-11-08 - o Self-replication – most important...

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BIL 150 – Sep 11 th   Start:  http://fig.cox.miami.edu/~cmallery/150/life/top_10_life.htm#10 Reading assignment:  http://fig.cox.miami.edu/~cmallery/150/life/script.for.life.htm Top 10 Characteristics of life o All cells metabolize Autotrophs – capable of synthesizing all their organic molecules Photosynthetic Chemotrophic Heterotrophs Obtain energy from chemical feuls Does exactly the opposite as autotrophs Metabolic pathway – linked sequences of individual chemical reactions Anabolic   synthetic Catabolic   breaking bonds (derogatory reactions) Two biological catalysts capable of breaking bonds   an enzyme  or a ribozyme Exhibits high economy and efficiency Self regulation property: negative feedback or positive feedback
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Unformatted text preview: o Self-replication – most important Asexual cell division = mitosis (the two progeny are genetically identical) Sexual cell division = meiosis Tierra – computer simulations of simulation • By Thomas Ray o All cells osmoregulate: regulate exchange material across cell membrane o All cells communicate o All cells move (animation) – the subcell organelles move in relationship to each other (molecular motors) o Cells grow, divide, develop and differentiate o Die • Inorganic chemistry o http://fig.cox.miami.edu/~cmallery/150/chemistry/chem.htm o Element o Atom o Losing an electron = oxidation gaining an electron = reduction o...
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This note was uploaded on 02/14/2010 for the course BIO 150 taught by Professor Mallery during the Spring '10 term at Miami University.

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BIL 150_09-11-08 - o Self-replication – most important...

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