1. Cell Structures and Function

2. Framework of the Cell

3. Cell Membrane
Thin membrane (lipid bilayer) that surrounds the cell and controls what enters and leaves the cell.

4. Cell Wall
Rigid structure (made of cellulose) found in plant cells that helps support and protect the plant.
Found outside of the cell membrane.

5. Cytoskeleton
Support structure that helps the cell maintain its shape and size.

6. Cytoplasm
Jelly-like substance which contains the various organelles of the cell. (Stretches from the cell membrane to the nucleus.)

7. Directing Cellular Activity

8. Nucleus
Directs most of the activities in the cell, and contains most of the cells genetic information.
Nucleolus – center portion of the nucleus
where ribosomes are produced.
Chromatin – uncoiled DNA located
within the nucleus.

9. Ribosome
Site of protein synthesis in the cell.

10. Protein Processing

11. Endoplasmic Reticulum
Functions as the pathway through which molecules move from one part of the cell to another.
Rough ER – the sections with
ribosomes attached
Smooth ER – the sections without

12. Golgi Apparatus
The processing, packaging, and secreting organelle of the cell.
Vesicle – the portion of the golgi appartus
that gets pinched off forming a little pouch

13. Storage and Maintenance

14. Lysosome
Small organelle that contain the cell’s digestive enzymes.

15. Central Vacuole Organelles that store enzymes and metabolic waste.
Only found in plants.

16. Energy Production

17. Mitochondria An organelle that produces ATP (energy).
The site of cellular respiration.

18. Chloroplast
In plant cells, organelles that use light to make energy for the cell.
Where photosynthesis occurs.

19. Cell Movement

20. Cilium and Flagellum
Cilia – hair-like organelles that extend from the surface, and assist in movement.
Flagella – whip-like tail that extends from the surface, and assists in movement.