Saturday, 28 September 2013

Properties of Fungi


  • These can be single celled organisms such as yeast.
  • Yeast reproduces asexually through budding, and it is used in making bread, beer and wine.
  • Most fungi are multi cellular e.g. mushrooms and mucor.

Features of fungi:
  • They are composed of thread like structures called hyphae which together form a network called mycelium.
  • Have cell walls made from chitin.
  • Do not photosynthesise as they do not have chloroplasts.
  • Contain a vacuole
  • Store carbohydrates as glycogen.
  • Mostly multi cellular.
  • Have many nuclei.
  • Reproduce sexually through structures called sporangium e.g. mushrooms that release spores.
  • When the spores land, new hyphae grow branching to form a new mycelium.
  • Some fungi are pathogens (causes disease) e.g. fungus causing ringworm.
  • Fungi feed saprotrophically.
  • They do this by extracellularly secreting digestive enzymes onto their food to break it down into small soluble molecules which can then diffuse from a region of higher concentration to lower concentration.