1. Cell Parts

2. Nucleus Nucleus “Brain of the cell” Controls the cell’s processes
Passes on genetic material

3. Nuclei in cells

4. Cell Wall “Cell Wall” Keeps invaders out and nutrients in
Found in plants, fungi, bacteria; not in animal cells
Stiff, allows plants to grow upward
Made of cellulose (think stringy part of celery)

5. Electron micrograph of a cell wall

6. Cell Membrane “Cell’s skin” Phospholipid bilayer
Lets food, water, nutrients in; keeps poisons out
In plants, just inside cell wall
In animals, the outer covering of the cell

7. Cell Membrane

8. Mitochondria (pl.) “powerhouse of the cell”
Breaks down sugar for energy (the energy-rich molecule is called ATP)
NNN (no note needed) You received your mitochondria from your mom!

9. Mitochondrial structure

10. Ribosome “Manufacturer of the cell”
Builds proteins (the major purpose of the cell)
Found on ER and cytoplasm

11. Ribosomes

12. Endoplasmic Reticulum (ER)
“Highway of the cell”
- connects to nucleus
- transports proteins and other products

13. Endoplasmic Reticulum

14. Lysosome “DIGESTER” Filled with enzymes that break down food
Digested molecules are passed on to the mitochondria
Kill invading bacteria
Common in animal cells, rare in plants

15. Lysosomes

16. Vacuole “Cell’s storehouse” Store water, food, other needs of the cell
Larger in plant cells

17. Vacuole

18. Chloroplasts “Solar power plant” Found in plant cells
Contains chlorophyll
Site of photosynthesis

19. Chloroplast

20. Animal Cell

21. Plant Cell

22. Label the parts