1. Today’s Objective
SWBAT differentiate between prokaryotic and eukaryotic cells SWBAT give examples of prokaryotic and eukaryotic organisms Overview Video:

2. The Two Types of Cells
As microscopes got more powerful, scientists started look at the parts inside cells.
An organelle is a small, specialized structure inside a cell.

3. Eukaryotic Cells Prokaryotic Cells
The Two Types of Cells
All cells can be divided into two categories:
Pro= before
Prokaryotic cells came BEFORE eukaryotic cells
Eukaryotic Cells
Prokaryotic Cells

4. Prokaryotic cells (bacteria only)

5. All bacteria are always unicellular such as E. coli
Prokaryotic Cells
All bacteria are always unicellular such as E. coli
Do NOT contain a nucleus or any other membrane-bound organelles.
DNA floats around in the cytoplasm
Pro= Before. Existed before the nucleus.
Much smaller and simpler than eukaryotic cells.

6. Eukaryotic cells (every other organism)

7. Think: Why is this important????
Eukaryotic cells
Eu- = TRUE. They have a true nucleus
The nucleus contains DNA and therefore controls the cell.
Found in all animals, plants, and fungi as well as unicellular algae and protozoans such as Amoeba.
Contain membrane-bound organelles, which allow different parts of the cell to do different functions.
Think: Why is this important????

8. Wow! Look at the difference!
Eukaryotes
Prokaryotes

9. Prokaryotes Both Eukaryotes
Guided Practice – Venn Diagram
Prokaryotes Both Eukaryotes
Word Bank:
Cytoplasm, DNA, Simple, Mostly multicellular, complex, no nucleus, ribosomes, bacteria, human cells, contains organelles, plants, Amoeba, always unicellular, plasma membrane, E. Coli, fungi, nucleus

10. Exit Ticket
Although prokaryotic cells and eukaryotic cells have many different characteristics, which characteristic is the most important in identifying a cell as prokaryotic?
The presence of a cell wall
The small size of the cell
Its existence as a unicellular organism
The absence of a nucleus

11. Exit Ticket
Which characteristic is NOT common to both prokaryotic cells and eukaryotic cells?
Free-floating genetic material in the cytoplasm
The presence of a cell membrane
Cytoplasm within the cell membrane
Its existence as a unicellular organism