KINE 2011 Chapter Notes - Chapter 2: Lipid Bilayer, Nuclear Membrane, Extracellular Fluid

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Larger species have a greater number of cells but not larger ones: muscle cells are the largest in the body, then red blood cells, digestive tract lining (epithelial) cells and live cells. Cell are the smallest structural and functional unit capable of carrying out life processes: functional activities of each cell depend on specific structural properties of the cell. Cells are living building blocks of all plant and animal organisms: an organisms structure and function ultimately depend on the individual and collective structural characteristics and functional capabilities of cells. All new cells and new life arise only from pre-existing cells: continuity of life; everything comes from cell division, life cannot come from something nonliving. There are about 200 different cell types in the human body: there is no such thing as a typical cell however cells share many common features. Nucleus contains the dna (there can be multiple)

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