Plant Cell

Cell Wall -

Function: Maintain cell pressure and prevent over-expansion of cells

Cell Membrane-

Function: Protects the cell from surrounding

Chloroplast-Found only in plants
Function: Conducts photosynthesis

Cytoplasm -

Function: Site of multiple cell processes including, cell metabolism

Golgi Body/apparatus -
Function: Sorting, processing and modifying proteins

Lysosomes-

Rare in plant cells.

Function:help bbreak down nutrients and old cell parts.

Mitochondrion-

Known to be the 'power house' or the 'storehouse of energy' of the cell, the mitochondria plays an important role in a cell.
Function: Energy production and conversion, regulates cell metabolism

Nucleus -

Function: Controls expression and transcription of the gene

Peroxisomes -

Membrane-bound packets of oxidative enzymes, the peroxisomes play a vital role in converting fatty acids to sugar. They also assist the chloroplasts in photo-respiration. Their functions include the glyoxylate cycle that occurs in germinating seeds and photo-respiration in leaves.

Function: Breakdown of metabolic hydrogen peroxide

Ribosomes-

Function: Protein builders and synthesizers

Smooth Endoplasmic Reticulum-

Similar to the structure of the rough ER, the smooth ER is a separate interconnected network membrane structure that is free from ribosomes. The SER transports material through the cell. It is also crucial in producing and digesting lipids and proteins.

Function: Manufactures and transports lipids

Vacuole- 

One large central vacuole.
Function: Regulates internal environment

http://www.buzzle.com/articles/labeled-plant-cell-diagram-and-functions.html