1. The Building Blocks of Life!
Cells!!!
The Building Blocks of Life!

2. Basic Types of Cells
Prokaryotic- does not have a true nucleus with a membrane or other organelles with membranes
Example: bacteria

3. Eukaryotic- has a true nucleus surrounded by a membrane and other organelles with membranes

4. Eukaryotic Cells
Animal Plant Fungi Protist

5. What are organelles?
small structures that carry out specific functions in certain cells
Allows cells to carry out many functions at same time

6. Cell Membrane “Gatekeeper” Protective layer around all cells
Has openings to allow things into and out of the cell
Double layer membrane

8. Cytoplasm Gelatin-like substance inside the membrane
Holds organelles in place
Constantly moving

9. Nucleus “Brain of the cell” Directs all the cell’s activities
Largest organelle in cell
Contains chromatin-hereditary material (unwound DNA)

10. Cytoskeleton Made of microtubules and microfilaments
Help maintain shape of cell
Direct traffic-movement of organelles

11. Endoplasmic Reticulum
“Transportation Center”
Moves materials around in the cell
Folded membrane with sacs and tunnels

12. Can be “Rough” or “Smooth”

13. Ribosomes “Protein Factories”
Makes proteins for the cell-gets directions from the nucleus
Found in cytoplasm or attached to ER

14. Lysosomes “Clean up Crew”
Contain chemicals that digest wastes and worn-out cell parts
Break down old cells and cell parts to be recycled

15. Golgi Bodies “UPS” Package and secrete materials
Stacks of flattened membranes
Modify proteins, hormones, carbohydrates then transport within or out of cell

16. Mitochondria “Powerhouse of the Cell”
Generates energy for all the cell’s chemical reactions
Breaks down food to release the energy
Contain their own DNA
Active cells have more

17. Vacuoles “ Storage containers”
Store or hold water, food, or other things the cell may need
Can store waste materials waiting to leave the cell
Are larger in plant cells

19. And In Plants...

20. Cell wall Found outside the cell membrane
Found in plant cells (and some bacteria)
Supports and protects cell
Made of a tough material called cellulose in plants

21. Chloroplasts Containers that hold chlorophyll
Gives plants their green color
Needed for photosynthesis
Found in plants and some protists (algae)

22. How are Living Things Organized?

23. Cell Organization
Youtubes:
1. cell cell organelle
2. Mr. W
3. Mr. Parr

25. Brainpop!