Kingdoms of life

• 5 Kingdoms of life

  Animals

  Plants

  Protoctists

  Fungi

  Bacteria
• Heterotrophs

  Organisms that eat other plants or animals for energy and nutrients
• Autotrophs

  Organisms that are capable of producing their own good from chemicals in the environment
• Saprotrophs

  Organisms that feed by saprotrophic nutrition (extracellular digestion of dead or decaying matter)
• Step 1 of saprotrophic nutrition

  Organism secretes digestive enzymes outside their body onto dead organic material
• Step 2 of saprotrophic nutrition

  Enzymes break down the organic material
• Step 3 of saprotrophic nutrition

  Organism absorbs the nutrients
• Mycelium

  Collection of hyphae
• Hyphae

  Small thread like projections of fungi that branch out into the soil
• Protoctists that can photosynthesise

  Chlorella

  Euglena
• Amoeba

  Protoctists that must consume other organisms to get their energy
• Parasite

  An organism that depends on another organism (the host) to survive and reproduce

  The host doesn’t benefit from the presence of the parasite