Meaning of Lifew

Meaning of Lifew - What is life? Ordered(Cellular)...

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What is life? Ordered (Cellular) Processes energy Responds to environment Regulation ( homeostasis - stable and  moderate internal environment) http://www.pbs.org/wgbh/nova/sciencenow/video/3209/i05.h Growth/development Reproduction (genetically continuous) Evolution
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Where is it?   What are its shared properties? What does it look like? What does it do? What is alive?
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What is the Scale of Life QuickTimeª and a TIFF (Uncompressed) decompressor are needed to see this picture. http://www.youtube.com/watch?v=A2cmlhfdxuY http://learn.genetics.utah.edu/content/begin/cells/scale/ The powers of ten - life is spread over 24 powers of ten
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Life Self-Assembles Self-Assembly   - when a disordered system of components  forms an organized structure as a consequence of specific,  local interactions among the components themselves,  without external direction Living components that self-assemble Small (moving, sticky) Big Macromolecules Populations Biological Membranes Super-organisms DNA  Symbiosis  Molecular motors Human societies?
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Self-assembly Mechanistic  not  Vitalistic Mechanistic  - living things are composed of parts  lacking any intrinsic relationship to each other, and with  their order imposed from within from predictable  patterns and rules Vitalistic  - living things are composed of parts  influenced by a vital principle that imposes an intrinsic  relationship between the parts http://www.youtube.com/watch?v=XH-groCeKbE
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Life is  Modular  -  the complexity of living  systems using separately conceived sub- components (modules) Cellular modularity  - built from genes Cellular Modules Protein RNA Gene (DNA)              Whole Genome
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A modular machine ++++++++                          +++++++++
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Organismal Modules (Self-assembly?)                                     
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Meaning of Lifew - What is life? Ordered(Cellular)...

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