The cell wall protects the plant cell. The cell wall is strong. Inside the cell wall is the cell membrane . The cell membrane is thin. The job of the cell membrane is to guard what enters and leaves the cell.

Chloroplasts are what make plants green. They turn carbon dioxide , sunlight, and water into sugar. Sugar is energy for the plant.

The mitochondria take the sugar and turns it into energy. If there is only one, it is called a "mitochondrion ."

The nucleus is like the brain of the cell. It tells all of the organelles what to do. 

The cytoplasm is like jelly inside the cell. It holds all of the organelles in place. 


http://www.rojo5th.net/science/cells/plant_cell.jpg