Cell organelles

Cell Membrane• Outer

boundary of cell

• Protects the cell

• Controls what enters and leaves the cell

Cell Wall

• Only found in plant cells

• Adds protection and support

• Made of cellulose

• Allows water and dissolved substances to pass through.

The Nucleus

• Controls most activities in the cell

• Contains all genetic information in the form of DNA.

Cytoplasm

• Clear fluid within cell that contains all organelles

• Moves materials throughout the cell

Endoplasmic Reticulum

• Series of folded membranes that form sacs or tubes

• Packages proteins for the Golgi Complex

• Rough ER has ribosomes attached; smooth ER does not have ribosomes

Ribosomes

• Transports materials between the cytoplasm and nucleus

• Makes proteins in the cell

• May be free in cytoplasm or attached to ER (rough ER)

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

Golgi Complex

• Saclike membranes used for storing/ packaging of chemicals

• Cells that make saliva or mucus have many Golgi complexes

Mitochondria

• Energy producers (“mighty mitochondria”)

• Powerhouse of the cell

• Sausage-shaped

• Many mitochondria in muscle cells

Vacuoles

• Store food, water, or waste materials

• Plant cells have large vacuoles

Lysosomes• Found in Golgi

complex

• Contain digestive enzymes to digest food particles & wastes

• Help white blood cells to destroy bacteria

• Clean up cell like Lysol (lysol = lysosome)

Chloroplasts

• Organelle where photosynthesis takes place

• Chlorophyll inside chloroplast gives plant its green color

• Only in plant cells