What are Cells

• MRS GREN


  movement

  respiration

  sensitivity

  growth

  reproduction

  excretion

  nutrition
• Types of Cells


  CELLS

  Eukaryotic

  • animal
  • plant
  • fungal
  • protoctistan

  Prokaryotic

  • bacteria

  NON CELLS

  • viroids
  • viruses
  • prions
• Cell Theory


  all living things are made up of cells

  • cells are basic units of life
  • new cells are created from pre-existing cells
  • cells contain genetic information
• Eukaryotic cells


  animals

  plants

  fungi

  protists
• Prokaryotic cells


  bacteria
• Animal vs Plant cells


  Plant cells have a cell wall, large vacuole & chloroplasts whereas animal cells do not
• Surface Area : Volume ratio


  As a cell grows:

  • SA increases
  • V increases
  • SA:V decreases