1. Mind Stretcher
Write (3) things that you know about cells. Think about your Directed Reading 3-1…
Don’t look at your notes until you have tried to remember on your own!

2. All cells must have these 3 Organelles…….
Cell membranes
Cytoplasm
DNA

3. Prokaryotic Cells No membrane bound organelles No Nucleus
Two major types:
Bacteria
Archaea

4. Bacteria Most Common Prokaryote Smallest Can live almost everywhere
DNA is long and circular
(Shaped like a twisted rubber band)
Not all Bacteria are bad!!
(We have bacteria on our teeth, skin, and in our digestive systems! They help us!!!)

5. Shapes of Bacteria 3 different shapes: Sphere-Streptococcus
Rod-E. Coli
Spiral- Cholera
Spherical
Rods
Spiral

6. Archaea Different from bacteria because of Ribosomes
Archaea ribosomes are like those of eukaryotic cells
Have different cell wall and cell membrane from all other cells
Live in EXTREME environments
Called “Extremophiles”
Heat-Loving
Salt-Loving
Methane-making
Can live near volcanic vents

7. TedEd: How bacteria cells changed the world…

8. Eukaryotic Cells Have “membrane bound” organelles Have a Nucleus
Largest of all cells
10 times larger than bacteria
ALL other living things (that are not bacteria or archaea) are made of eukaryotic cells!
Most are Multicellular- (Made of many cells)

9. Prokaryotic Vs. Eukaryotic Cell

10. Which one is it??!!
Prokaryote

11. Which one is it??!!
Eukaryote

12. Which one is it??!!
Prokaryote

13. Prokaryotes vs. Eukaryotes- Video clip

14. Ticket out the Door: Bubble in T for True and F for False:
Prokaryotic cells are more complex than eukaryotic cells.
Eukaryotic cells are much smaller than prokaryotic cells.
Both cells contain DNA.
Prokaryotic cells have a nucleus.
Archaea is a type of prokaryotic cell.

15. Mind Stretcher 1. Why are cells small?
Larger the cell the more nutrients needed and the more waste created
2. How Many parts are there to the Cell Theory (be prepared to describe each one! )
Three
3. What are the two types of Prokaryotic Cells?
Archaea and Bacteria

16. Eukaryotic vs. Prokaryotic
Ideas for your Venn:
Organelles inside each
Examples of specific types of cells
Simple or Complex?
Size of cells

17. Moves the stage up and down for focusing
Mind Stretcher
1. What is the total power of magnification if your objective lenses range from 4x-40x?
40X-400X
2. What is the function of the COARSE adjustment knob?
Moves the stage up and down for focusing
3. Which part of the microscope holds the objective lenses?
Nosepiece