Eukaryotic Cells


Eukaryotic cells are found in the kingdoms Protista, Plantae, Fungi, and Animalia
They have a nucleus and membrane enclosed organelles.

There are several general features of eukaryotic cells:
Eukaryotic cells have a nucleus.
Eukaryotic cells are ten times greater in size than prokaryotic cells.
   Eukaryotic cells possess a plasma membrane (a phospholipid bilayer that encloses the cell).
Both cystol and ribosomes make up the cytoplasm in eukaryotic cells.
They have an internal cytoskeleton.
Eukaryotic cells have membrane-bound organelles.

The endomembrane system in a eukaryotic cell is a system of membranes that exchange materials.
The golgi apparatus, endoplasmic reticulum, and lysosomes are all members of the endomembrane system.

Transport and signaling functions are carried out on a eukaryotic cell's plasma membrane.

A eukaryote's extra-cellular matrix is composed of proteins and glycoproteins that have been secreted by cells. 
The extra-cellular matrix surrounds many animal cells.

Locomotion of a eukaryotic cell is aided by flagella or cilia.

flagella.gif (571 bytes)             
Flagella whip back and forth               
The are structurally different from the flagella found in prokaryotes.   

                cilia.gif (373 bytes)
              Cilia are shorter and beat stiffly in one direction.

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