cells

• Cells


  Too small for us to see, we would need a microscope to help us see cells
• Plant Cell


  • Cell wall - protects
  • Mitochondria - releases energy from food
  • Large vacuole - stores water
  • Cytoplasm - where photosynthesis takes place
  • Nucleus - stores dna and controls everything
  • Chloroplast - produces energy
  • Cell membrane - provides protection, also the wall of the cell
  • Vacuole - take in waste and release waste
• Cells


  The building blocks of life
• Diffusion


  • Process where molecules move from an area of high concentration to an area of low concentration
• Using a Light Microscope

  1. Object placed on stage of the microscope

  2. Focused using the lens

  3. Allows you to see with the naked eye
• Cytoplasm


  Place where lots of chemical reactions (photosynthesis) take place
• Unicellular organisms


  Organisms made up of a single cell
• Unicellular organisms


  • Euglena
  • Amoeba
• Animal and plant cells


  • Share some features but not others
  • Different parts have different functions
• Parts of animal and plant cells

  • Membrane
  • Cytoplasm
  • Nucleus
  • Mitochondria
  • Cell wall
  • Vacuole
  • Chloroplast
• Membrane


  Controls what enters and leaves the cell
• Nucleus


  Stores information (in DNA) and controls what happens in the cell
• Mitochondria


  Release energy from food (glucose) by aerobic respiration
• Cell wall


  Made from cellulose and gives rigid support to the cell
• Vacuole


  Inflates the cell like air pumped into a tyre and provides support to the cell
• Chloroplast


  Contains green chlorophyll that changes sunlight energy into glucose food energy
• Animal cells have membrane, cytoplasm, nucleus, mitochondria
• Plant cells have membrane, cytoplasm, nucleus, mitochondria, cell wall, vacuole, chloroplast