Prokaryotes Vs Eukaryotes


Published on

Published in: Technology, Education
1 Like
  • Be the first to comment

No Downloads
Total views
On SlideShare
From Embeds
Number of Embeds
Embeds 0
No embeds

No notes for slide

Prokaryotes Vs Eukaryotes

  1. 1. Now that we have learned how living things are organized what’s next? <ul><li>We will learn more about the lowest level of organization: cells </li></ul><ul><li>What is the first thing that we need to know about cells? </li></ul><ul><li>All cells fall into one of the two major classifications of either prokaryotes or eukaryotes. </li></ul>
  2. 3. What’s the difference between prokaryotes and eukaryotes? <ul><li>Prokaryotic cells were here first and for billions of years were the only form of life on Earth. All prokaryotic organisms are unicellular </li></ul><ul><li>Eukaryotic cells appeared on earth long after prokaryotic cells but they are much more advanced. Eukaryotic organisms unlike prokaryotic can be unicellular or multicellular . </li></ul>
  3. 5. Glow in the dark squid… how does it do that?
  4. 6. <ul><li>Vibrio fischeri </li></ul><ul><li>Glow in the dark bacteria </li></ul><ul><li>Helps it survive in the ocean </li></ul><ul><li>Lives in fish and other marine life </li></ul>
  5. 7. Let’s take a look at the characteristics of Prokaryotes <ul><li>Prokaryotes are the simplest type of cell. (appeared about four billion years ago) </li></ul><ul><li>Prokaryotes are the largest group of organisms </li></ul><ul><li>Prokaryotes unicellular organisms that are found in all environments. </li></ul><ul><li>Prokaryotes do not have a nuclear membrane . Their genetic material dispersed throughout cytoplasm. </li></ul><ul><li>Prokaryotes do not have membrane-bound organelles </li></ul><ul><li>Prokaryotes have a simple internal structure </li></ul>
  6. 8. Shapes of Prokaryotes <ul><li>Cocci = spherical (round) </li></ul><ul><li>Bacillus = rod shaped </li></ul><ul><li>Sprilla = helical (spiral) </li></ul>
  7. 9. What do prokaryotic cell look like?
  8. 10. Now let’s take a look at the characteristics of eukaryotes <ul><li>Eukaryotic cells appeared approximately one billion years ago </li></ul><ul><li>Eukaryotes are generally more advanced than prokaryotes </li></ul><ul><li>Nuclear membrane surrounding genetic material (DNA) </li></ul><ul><li>Unlike prokaryotes and eukaryotes have several different parts. These parts are known as organelles and they are covered by membranes </li></ul>
  9. 11. Is there more? Yes!!! <ul><li>Eukaryotes have a complex internal structure </li></ul><ul><li>Unlike prokaryotes , eukaryotes have several different parts. These parts are known as organelles and they are surrounded by a covering known as a membrane . </li></ul>
  10. 12. What do eukaryotic cells look like?
  11. 13. How do the differences line up? <ul><li>Prokaryotes </li></ul><ul><li>Cell membrane </li></ul><ul><li>Ribosomes </li></ul><ul><li>Genetic material (DNA and RNA) </li></ul><ul><li>Cytoplasm </li></ul><ul><li>Unicellular </li></ul><ul><li>Small </li></ul><ul><li>Eukaryotes </li></ul><ul><li>Cell membrane </li></ul><ul><li>Membrane bound organelles (ribsomes) </li></ul><ul><li>Mebrane covered Genetic material </li></ul><ul><li>Cytoplasm </li></ul><ul><li>Can be multicellular </li></ul><ul><li>Larger </li></ul>
  12. 14. How do the similarities line up? <ul><li>Lets See!!! </li></ul><ul><li>Both types of cells have cell membranes (outer covering of the cell) </li></ul><ul><li>Both types of cells have ribosomes </li></ul><ul><li>Both types of cells have DNA </li></ul><ul><li>Both types of cells have a liquid environment known as the cytoplasm </li></ul>
  13. 15. <ul><li>Your turn: </li></ul><ul><li>Make a Venn Diagram outlining the similarities and differences between prokaryotes and eukaryotes </li></ul><ul><li>You may use your book and your partner </li></ul>