1. Cells: Eukaryotes & Prokaryotes
Cells Unit

2. Turn and Talk: Essential Question
What are the main differences between prokaryotic and eukaryotic cells? How are these cells similar?
Turn and Talk:
Why do you think there is more than one type of cell?

3. Eukaryotes are multicellular
Plant Examples
Animal Examples
Trees
Cheetah
Grasses
Dolphin, Fish
Flowers
Hydras

4. Missing Organelles Plants Animals No centrioles (to divide cell)
No chloroplasts
No cell wall

5. Unique Organelles
Plants
Animals
Chloroplasts
Cell Wall
Centrioles

6. Are plants and animals alive??
“to make or use energy…”
Plants use sunlight to make food
Animals eat other organisms

7. DNA Location for Plants and Animals
Eukaryotes: DNA protected in nucleus.

8. Energy Source
Plants use sunlight
Animals eat other organisms

9. Eukaryotic Reproduction
sexual reproduction
Zygote = a male and a female gamete

10. Prokaryotes Single-celled Bacteria Smaller than eukaryotic cells
Ex: E. coli, salmonella, pneumonia

11. Prokaryotes NONE! Nucleus Mitochondria chloroplasts
Missing membrane-bound organelles such as:
Unique Organelles:
NONE!
Nucleus
Mitochondria
chloroplasts

12. Are prokaryotes alive?? Bacteria use energy from the sun chemicals
from other cells.

13. Prokaryote DNA Location
No nucleus!
DNA floats around in the cell
Circular plasmids

14. Prokaryote Energy Source
the sun
chemicals
from other cells.

15. Prokaryotic Reproduction
Asexual
Split in half
Clones

16. Viruses Cold (~500 different forms) Flu (H1N1 and other strains) HIV
Herpes
Chicken Pox

17. Viruses don’t have much…
no organelles: missing ALL organelles
Uses the host’s organelles = parasite
No Unique organelles
Just DNA wrapped in a protein shell.

18. Are Viruses alive?? No!! Yes!!
No organelles or parts found in true cells
Just DNA + protein shell
They use energy (from host) to reproduce (in host cell)

19. Viruses Energy comes from Host Reproduction: DNA Location
Energy Source
Just DNA wrapped in a protein coat
Energy comes from Host
Reproduction:
Uses host cells organelles to make more viruses. Kills host cell in process