1. Cells
Unit 4

2. What is a cell?
Remember, a cell is the basic unit of life!!!

3. What are the 2 types of cells?
There are 2 types of cells:
Prokaryotic
2. Eukaryotic

4. How do I know the difference between prokaryotic and eukaryotic cells?
Nucleus
Very Complex
Many cells
Example: Plants, Animals, Fungi, Protists
No nucleus
Very Simple
One cell
Example: Bacteria
Have DNA
Have cell membrane
Are living

5. There are rules for cells called:
The Cell Theory

6. All living things are composed of cells

7. 2. Cells are the basic units of structure and function in living things

8. 3. New cells are produced from existing cells

9. What are cells made of?
Cells have “little organs” that help them work, called organelles.

10. When many similar cells come together…
When similar cells come together to perform a specific function it’s called a tissue.

11. When tissues come together…
When tissues come together to perform a specific function it’s called an organ

12. When organs come together…
When organs come together to perform a specific function it’s called an organ system

13. When all the organ systems work together…
When all the organ systems work together it’s called an organism

14. Organelles