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Cell Structure and Function
Concept 1: Common Features of All Cells
Concept 2: Features of Prokaryotic Cells
   Practice (1 page)
   Review (1 page)
Concept 3: Features of Eukaryotic Cells
   Practice (3 pages)
   Review (3 pages)
Concept 1: Common Features of All Cells
All cells, whether they are prokaryotic or eukaryotic, have some common features.
Common features of prokaryotic and eukaryotic cells
The common features of prokaryotic and eukaryotic cells are:
1. DNA, the genetic material contained in one or more chromosomes and located in a nonmembrane bound nucleoid region in prokaryotes and a membrane-bound nucleus in eukaryotes

2. Plasma membrane, a phospholipid bilayer with proteins that separates the cell from the surrounding environment and functions as a selective barrier for the import and export of materials

3. Cytoplasm, the rest of the material of the cell within the plasma membrane, excluding the nucleoid region or nucleus, that consists of a fluid portion called the cytosol and the organelles and other particulates suspended in it

4. Ribosomes, the organelles on which protein synthesis takes place