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
 Osmosis: chemical
process, the water
moves 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.