2.1 Cells

• Basic features of all cells

  • plasma membrane
  • cytoplasm
  • chromosomes
  • ribosomes
• Cell types

  Prokaryotic and Eukaryotic
• Eukaryotic cells


  • contain membrane bound organelles
  • generally complex, part of multicellular organisms

  
• Prokaryotic cells


  • contain non-membrane bound organelles and free-floating DNA
  • smaller, simpler cells

  
• Cell Theory


  idea that all living things are composed of cells, cells are the basic units of structure and function in living things, and new cells are produced from existing cells
• Eukaryotic cells features


  • membrane bound organelles
  • functions of organelles combine to enable the cell to function
• Photosynthesis equation


  6CO2 + 6H2O ------> C6H12O6 + 6O2
• Fungal cell

  • eukaryotic
  • unicellular/multicellular
  • cell wall made of chitin
  • no chloroplast
• Algal cell

  • Eukaryotic
  • unicellular/multicellular
  • cell wall= cellulose
  • photosynthesises: may have 1 large chloroplast