Cells
Upcoming SlideShare
Loading in...5
×

Like this? Share it with your network

Share

Cells

  • 798 views
Uploaded on

Year 8 Cells - For additional resources visit: http://www.iheartscience.net

Year 8 Cells - For additional resources visit: http://www.iheartscience.net

More in: Education , Technology
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Be the first to comment
No Downloads

Views

Total Views
798
On Slideshare
275
From Embeds
523
Number of Embeds
6

Actions

Shares
Downloads
3
Comments
0
Likes
1

Embeds 523

http://www.iheartscience.net.usrfiles.com 365
http://static.usrfiles.com 98
http://static.wix.com 30
http://learni.st 27
http://htmlcomponentservice.appspot.com 2
http://www.google.com 1

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
    No notes for slide

Transcript

  • 1. Cells Sarah Jones
  • 2. The Discovery of Cells In the seventeenth century, Robert Hooke looked at thin slices of cork under a microscope that he had made from lenses. He observed small box-like shapes inside the cork. He called the little boxes that he saw cells. marshscience7.blogspot.com
  • 3. Under the five kingdom system cells can be divided into two basic types.
  • 4. Prokaryotic cells - simple cells without distinct membrane bound organelles or nucleus.
  • 5. Eukaryotic cells - more complex with membrane bound organelles and nucleus.
  • 6. Animal Cell
  • 7. • Exist as part of a multicellular organism. • Specialisation of cells into many types (cell differentiation). • Possess nucleus and membrane bound organelles. • Many different types.
  • 8. Plant Cell
  • 9. • Exist as part of a multicellular organism. • Specialisation of cells into many types (cell differentiation). • Possess nucleus and membrane bound organelles.
  • 10. Plant vs Animal Plant and animal cells have many similarities because they are both eukaryotic. They also have some differences:
  • 11. Parts of a Generalised Animal Cell
  • 12. Nucleus • Contains the chromosomes (genetic information) for the cell. • Controls the activities of the cell.
  • 13. Mitochondria • Double membrane - outer membrane and inner membrane. • Inner membrane is folded forming cristae. • The interior contains an organic matrix containing chemical compounds. • Site of aerobic respiration.
  • 14. Rough Endoplasmic Reticulum • A membrane system of flattened parallel cavities which are interconnected and covered with ribosomes. • An intracellular transport system.
  • 15. Golgi Apparatus • Consists of a stack of flattened cavities which package substances produced by the cell into vesicles. • These vesicles can fuse with the cell membrane (exocytosis) or become lysosomes (digestive vesicles).
  • 16. Plant Cell Walls • The main component of plant cell walls is cellulose. • Cellulose molecules are arranged in bundles called microfibrils. • The function of the plant cell wall is to provide strength and support the plant.
  • 17. Prokaryotic organisms are commonly called bacteria. They are cells with a simple structure. They have no membrane around the nucleus and lack any membrane bound organelles.
  • 18. Blue-green bacteria make their own food by photosynthesis.
  • 19. Cell Division