1. 7.2 Cell Organelles
Eukaryotic Cells have a membrane-bound nucleus and organelles
The nucleus stores genetic information
Nuclear membrane (envelope) = surrounds nucleus
Nucleolus = located inside nucleus, where ribosomes are made

2. 7.2 Cell Organelles Ribosomes Link amino acids to form proteins.
“Protein Factory”

3. 7.2 Cell Organelles Endoplasmic Reticulum (ER)
System of interconnected membranes that process and move proteins (from rough ER) or lipids (from smooth ER).
“Transport System”

4. 7.2 Cell Organelles Two types of ER Rough ER – Covered with ribosomes
– Processes and transports proteins
– Completed protein is packaged into a vesicle that
pinches off of rough ER
Smooth ER
– Does not have ribosomes
– Makes lipids and breaks down
toxic substances
Rough ER
Smooth ER

5. 7.2 Cell Organelles Vesicles Membrane-bound sacs that hold materials.
“Packages to be delivered”

6. 7.2 Cell Organelles Golgi apparatus
Modifies, sorts, and packages materials for export out of the cell
“Post Office”

7. endoplasmic reticulum
nucleus
protein on its way!
DNA
TO:
RNA
vesicle
TO:
TO:
vesicle
ribosomes
TO:
protein
finished protein
Golgi apparatus
Making Proteins

8. 7.2 Cell Organelles Mitochondria Supply energy to the cell.
“Power house”

9. 7.2 Cell Organelles Lysosomes Contain enzymes to digest material
“Garbage Dump”

10. 7.2 Cell Organelles Vacuole Fluid-filled sac used for storage of water
and food
“Storage Tank”
Animals have many
small vacuoles.
Plants have a single
large central vacuole.

11. 7.2 Cell Organelles Centrioles Tubes found in the centrosomes
Help in cell division
Form cilia and flagella
Only found in animals cells

12. 7.2 Cell Organelles Cell Wall Provides rigid structural support
Made of cellulose
Only found in plant cells

13. 7.2 Cell Organelles Chloroplast
Convert solar energy to chemical energy through
photosynthesis.
Only found in plant cells

14. 7.2 Cell Organelles Animal cell vs. Plant cell animal cells
plant cells