The Function of Organelles

1
The Function of Organelles

• Occupations of Organized Organelles

2
Cell Wall

• Found only in plant cells
• Gives support to the cell
• Made of cellulose fibers

3
Cell Membrane

• ALL cells have one
• Separates whats inside from environment
• Made of phospholipids

4
Nucleus

• Found only in eukaryotes
• Contains DNA
• The info needed to make a cell
• Is covered by 2 membranes
• Nucleolus in middle
• Makes ribosomes

5
Ribosomes

• Found in ALL cells
• Make proteins
• More ribosomes in a cell than any other organelle

6
Endoplasmic Reticulum

• Delivery system
• Delivers proteins made by ribosomes throughout
  cell
• Two Parts
• Rough
• Has ribosomes
• Smooth
• No ribosomes

7
Mitochondria

• Powerhouse of the cell
• Sugar is broken down for energy
• Energy released by mitochondria is stored in ATP
• Most of cells ATP made here
• Animal cells cant make own food so we need these
  to break down sugar for energy

8
Chloroplasts

• Found only in plant cells
• Contain chlorophyll
• Photosynthesis happens in these
• Traps sunlight and ?sugar
• The sugar is then broken down by mitochondria

9
Golgi Complex

• Packages and distributes proteins
• Proteins are sent here from the ER
• Then a piece of Golgi membrane encloses the
  protein, pinches off, and is sent to another part
  of the cell or out of it

10
Vesicles

• A bubble that surrounds some material in the cell
  in order to move it
• Lysosomes
• Destroy, get rid of waste, or protect
• Vacuole
• Digests
• Stores water
• Plants have a large central vacuole

11
Recommended Viewing

• http//www.cellsalive.com/cells/cell_model.htm
• Organelle Function Table, p. 62