There are two main types of cells: eukaryotic and prokaryotic. Eukaryotic cells include plant, animal, fungi and protist cells which have a nucleus and organelles, while prokaryotic cells like bacteria and archaea lack a nucleus. Key differences between prokaryotic and eukaryotic cells include the presence of organelles like mitochondria and the nucleus in eukaryotic cells. Both plant and animal cells share features like the cell membrane, cytoplasm, and mitochondria but plant cells also have a cell wall, chloroplasts, and a permanent vacuole. Specialized cell types perform functions like photosynthesis, reproduction and oxygen transport.

1. Science: CellsScience: Cells

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. Eukaryotic cellsEukaryotic cells
 Fungi: heterotrophic, reproduction by spore
 Protists: autotrophic
 Plants: photosynthesis, autotrophic
 Animal: heterotrophic, sexual reproduction

4. Prokaryotic cellsProkaryotic cells
 Archea: no nucleus, autotrophic and heterotrophicArchea: no nucleus, autotrophic and heterotrophic
 Bacteria: heterotrophicBacteria: heterotrophic

5. Differences between prokaryoticDifferences between prokaryotic
cell and eukaryotic cellcell and eukaryotic cell

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. 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. 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. Tissue, organ and system
 Tissue: a group of cell
 Organ: a group of tissue
 System: a group of organ

10. Osmosis
 Is a chemical
process when the
water go across a
membrane from a
more concentated
solution to less
concetrated
solution.

11. Diffusion
 Diffusion: when the solute moves from regions
of higher concentration to regions of lower
concentration.

12. Site on Web
 http://www.bbc.co.uk/schools/gcsebitesize/science
 http://it.wikipedia.org

13. THE END