Cell Wall - found only in plant cells.  A cell wall, along with the help of water pressure, acts as a "skeleton" for a plant.

                                                      

Chloroplasts - contain chlorophyll, a green pigment, which harvests the sun's energy.  The energy in turn is used in a process called photosynthesis to make glucose (sugar).  This structure is only found in plant cells.        

 

Endoplasmic Reticulum (ER) - provides transportation throughout the cell.  There are two types of ER: smooth ER and rough ER.  Rough ER contains ribosomes (where protein synthesis takes place) which make it appear rough.

 

 

                                                                  

Mitochondria - the "powerhouse" of the cell. The mitochondria uses glucose to make energy. It is found in both plant and animal cells.

                                                                             

Cell Membrane - contains the three cell surface proteins: receptors, markers, and channel.  Channel proteins allow materials to pass into and out of the cell.  Receptor proteins detect and react to materials that the cell encounters.  Marker proteins act as a nametag for the cell.

                                                                  

 

 

 

 

 

Vacoule - storage center for a cell.  Although both plant and animal        cells contain vacoules plant cells have enlarged vacoules.

 

 

 

Golgi Body - packages and stores materials for the cell.

 

Cytoplasm - a jelly like material fills the inside of the cell.

 

 

Nucleus - the "brains" of a cell.  The nucleus controls the activities of a cell and contains genetic information (DNA).  The nucleolus is the dot inside the nucleus.