Cell Theory - Cell Theory A. Cell Theory - all organisms...

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Cell Theory A. Cell Theory - all organisms are composed of one or more cells - cells come from pre-existing cells - cells are the basic functional unit of organisms B. Fundamental Features 1. cell membrane- regulates materials coming in and out of cell 2. Cytoplasm- everything inside cell membrane except nucleus (including organelles) 3. Nuclear material a. Nucleus DNA is everything else b. Nucleoid (bacteria) C. Cell size 1. Microscopic- anything under .2 mm= 200 μm a. Prokayotic- 1-10 μm b. Eukaryotic- 10-100 μm 2. Surface Area/volume ratio a. the larger the surface Area/volume ratio the better transfer of materials b. The larger the cell the more the nucleus cannot
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Cell Theory - Cell Theory A. Cell Theory - all organisms...

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