Fungus

A fungus is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms.

These organisms are classified as one of the traditional eukaryotic kingdoms, along with Animalia, Plantae and either Protista or Protozoa and Chromista.

• A characteristic that places fungi in a different kingdom from plants, bacteria, and some protists is chitin in their cell walls.
  • Chitin is the second most abundant polysaccharide (long-chain polymeric carbohydrates) in nature (behind only cellulose).
    • The cellulose content of…
      • cotton fiber is 90%
      • wood is 40–50%
      • dried hemp is 57%.
  • The fungal cell wall is made of a chitin-glucan complex; while glucans are also found in plants and chitin in the exoskeleton of arthropods, fungi are the only organisms that combine these two structural molecules in their cell wall.
  • Unlike those of plants and oomycetes, fungal cell walls do not contain cellulose.

Fungi, like animals, are heterotrophs; they acquire their food by absorbing dissolved molecules, typically by secreting digestive enzymes into their environment.

• https://en.wikipedia.org/wiki/Fungus