1. Cell Types

2. Essential Question: 1.) What are prokaryotic and eukaryotic cells?

3. Cells Smallest living unit Most are microscopic
Building blocks of life

4. Organelles – “ Mini Organs”
Organelles are parts of the cell that help it function
A cell has organelles like we have organs

5. Cell Types
Prokaryotic
Eukaryotic

6. Prokaryotic Cells The “simple” type of cell First cell type on earth!
Bacteria and Archaea (ancient bacteria)

7. Prokaryotic Cells
No nucleus
Nucleoid = region of DNA concentration

8. Prokaryotic Cells
Only have a few organelles: Cell membrane, cell wall, cytoplasm, DNA, and ribosomes

9. Eukaryotic Cells
Include fungi, plant, animal cells, and protists

10. Eukaryotic Cells Nucleus is bound by membrane
Possess many organelles (all that prokaryotes have plus many more)

11. Animal Cell

12. Plant Cell

13. Cell Notes Part 2: Organelles

14. Organelles (review from yesterday)
Organelles are parts of the cell that help it function
A cell has organelles like we have organs

15. What do all cells (Prokaryotic and Eukaryotic) have?

16. Cell Membrane Surrounds cell contents
Allows materials to go in and out of cell
It is like a fence with gates

17. Cytoplasm Jelly-like fluid that supports organelles
Fills up all of the “in between” space
Its like a thick broth when you make soup

18. DNA Material inherited from your parents
Controls the activities of the cell
It’s like a “blueprint”

19. Ribosomes Make proteins
Proteins do things like move stuff in and out of the cell
They are like the lunch staff at school

20. What do only eukaryotic cells have?

21. Nucleus Control center of cell because it has DNA
Big circle towards the middle (like the onion cells we saw)
Its like the brain of the cell

22. Nucleolus At the center of the nucleus
Materials for ribosomes found here

23. Endoplasmic Reticulum
Helps move substances within cells
Its like the cell delivery system
(Two types
Rough ER—ribosomes attached
Smooth ER—no ribosomes present)

24. Mitochondria Break down fuel molecules to make energy
Like the power plant of the cell

25. Golgi Apparatus Sends proteins and other materials out of cell
Its like the packaging & shipping station of cell

26. Golgi Apparatus Function
Molecules come in vesicles
2. Vesicles join Golgi membrane
3. Molecules may be modified or changed by Golgi

27. Golgi Apparatus Function (Continued)
4. Molecules pinched-off in separate vesicle
5. Vesicle leaves Golgi apparatus
6. Vesicles may combine with cell membrane to distribute contents

29. Vacuoles Membrane bound storage sacs
More common in plants than animals
Like the lunchbox of the cell
Contents
Water
Food
Wastes

30. Lysosomes Functions Aid in cell renewal Break down old cell parts
Digests invaders
*Like the cleaner of the cell

31. Things found only in plant cells

32. Cell Walls Found ONLY in plant cells (and some prokaryotic cells) .
Rigid layer that surrounds cell membrane

33. Chloroplasts Solar energy capturing organelle
Photosynthesis occurs here
Only in plants