lecturenotes3 - Cells as energy-dependent, semi-autonomous,...

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Sheet1 Page 1 Cells as energy-dependent, semi-autonomous, semi-homeostatic, reproducing, bounded improbable assemblies (scale: micro n Free-living single cells, cell as parts of multicellular organisms (need for coordination) Cell components - need for coordination Who's in charge? The role of the nucleus Cells as three dimensional flux regulators in flux (matter, energy, information) Look both back toward macromolecules and forward toward multicellular organisms - interdependence, distributed control, t h Prelude: The "cell theory", cell size limitations? Relations to outside world - surface to volume considerations Organization of inside world Cell components cell membrane, nucleus, "protoplasm","cytoplasm", cytosol membrane bound spaces membrane bound organelles: mitochondria, chloroplasts cytoskeleton - another example of protein shape change keep eye on membranes (spaces, structural elements, interfacers) The role of the nucleus Influences on other components Mechanisms of influence on other cell components
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lecturenotes3 - Cells as energy-dependent, semi-autonomous,...

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