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Prokaryotic - Two Basic Types of Cells Prokaryotic bacteria...

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Two Basic Types of Cells * Prokaryotic- bacteria * larger than eukaryotic cells * lacks a nucleus but has a nucleiod (a region of coiled DNA) * DNA is in direct contact with rest of cells contents * Cell wall- a rigid complex structure that protects the cell and helps to maintain its shape * Some have a sticky outer coat called a capsule that further protects the cell and helps to adhere the cell to surfaces * Some have projections * Pili- short projections that aid in adhesion * flagella- used to propel through the liquid environment * Eukaryotic- all other forms of life Human Cell Plant Cell Generalized Cell Three parts * Plasma (cell) membrane- the limiting membrane that separates the outer from the internal cell environment * Cytoplasm- all the cellular contents between the plasma membrane and the nucleus * cytosol- the thick semifluid portion of the cytoplasm * Organelles- the highly organized structures in the cytoplasm that are specialized for particular functions.
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