Science

680 views

Published on

Published in: Technology
1 Comment
0 Likes
Statistics
Notes
  • dddddddddddddddddddddcoooooooooooooooooooooooooooooooommmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm
       Reply 
    Are you sure you want to  Yes  No
    Your message goes here
  • Be the first to like this

No Downloads
Views
Total views
680
On SlideShare
0
From Embeds
0
Number of Embeds
3
Actions
Shares
0
Downloads
0
Comments
1
Likes
0
Embeds 0
No embeds

No notes for slide

Science

  1. 1. Science: CellsScience: Cells
  2. 2. Cells - IntroductionCells - Introduction  There are two types of cells: eukaryotic and prokaryoticThere are two types of cells: eukaryotic and prokaryotic.. •Fungi •Protists •Plants •Animal •Archaea •Bacteria
  3. 3. Eukaryotic cellsEukaryotic cells  Fungi: heterotrophic, reproduction by spore  Protists: autotrophic  Plants: photosynthesis, autotrophic  Animal: heterotrophic, sexual reproduction
  4. 4. Prokaryotic cellsProkaryotic cells  Archea: no nucleus, autotrophic and heterotrophicArchea: no nucleus, autotrophic and heterotrophic  Bacteria: heterotrophicBacteria: heterotrophic
  5. 5. Differences between prokaryoticDifferences between prokaryotic cell and eukaryotic cellcell and eukaryotic cell
  6. 6. Animal cellsAnimal cells  A membrane around the cellA membrane around the cell  Cytoplasm: chemical activities, mitochondrionCytoplasm: chemical activities, mitochondrion  Nucleus: genetic code, control centre fo the cellNucleus: genetic code, control centre fo the cell  Mitochondrion: organellesMitochondrion: organelles
  7. 7. Plant cellsPlant cells  The plant cells have some key features in common withThe plant cells have some key features in common with animal cells (Membrane, cytoplasm, nucleus,animal cells (Membrane, cytoplasm, nucleus, mitochondrion)mitochondrion)  Cell wall: strengthens the cellCell wall: strengthens the cell  ChloroplastsChloroplasts :contain chlorophyll, for photosynthesis:contain chlorophyll, for photosynthesis  Permanent vacuole: help cell, with sap cellsPermanent vacuole: help cell, with sap cells
  8. 8. Specialised cellsSpecialised cells Leaf cell: absorbs light for photosynthesis Root hair cell absorbs water and mineral ions Sperm cell: reproduction male cell Red blood cells: carry oxygen, with haemoglobin
  9. 9. Tissue, organ and system  Tissue: a group of cell  Organ: a group of tissue  System: a group of organ
  10. 10. Osmosis  Is a chemical process when the water go across a membrane from a more concentated solution to less concetrated solution.
  11. 11. Diffusion  Diffusion: when the solute moves from regions of higher concentration to regions of lower concentration.
  12. 12. Site on Web  http://www.bbc.co.uk/schools/gcsebitesize/science  http://it.wikipedia.org
  13. 13. THE END

×