Function of the Organelles Thur. Feb. 6

• Objective: Write down the function of each organelle and how it works to keep the cell working.

Organelles of the Cell

1. Cell Membrane*

• Outer boundary of cell

• Protects the cell

• Controls what enters and leaves the cell

2. Cell Wall*

• Only found in plant cells

• Adds protection and support

• Made of cellulose.• Allows water and

dissolved substances to pass through.

3. The Nucleus*

• Controls most activities in the cell

• Contains all genetic information in the form of DNA.

4.Cytoplasm*

• Clear fluid within cell that contains all organelles

• Moves materials throughout the cell

5. Endoplasmic Reticulum

• Series of folded membranes that form sacs or tubes

6. Ribosomes

• Makes proteins in the cell

• May be free in cytoplasm or attached to ER

• Proteins are vital to life, all cells must produce them

7. Golgi Bodies

• Saclike membranes used for storing/ packaging of chemicals

• Cells that make saliva or mucus have many Golgi bodies

8. Mitochondria

• Energy producers

• Powerhouse of the cell

• Sausage-shaped

• Many mitochondria in muscle cells

9. Chloroplasts*

• Only found in plant like cells

• Chloroplasts contain the pigment chlorophyll

• Suns energy absorbed here and turned to usable energy for the plant.

10. Vacuoles*

• Store food, water, or waste materials

• Plant cells have large vacuoles

11. Lysosomes

• Found in Golgi bodies

• Contain digestive enzymes to digest unwanted particles

• Help white blood cells to destroy bacteria