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CH 31
Fungi
9
Biology
12th Grade
02/04/2009

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Term
Fungi characteristics
Definition
  • eukaryotic
  • multicellular
  • heterotrophs (absorbtion-absorb from outside meduium)
  • cell walls of chitin
Term
exoenzymes
Definition
  • fungi digests food outside its body by secreting exoenzymes (decompose complex molex to simpler compounds)
Term
hyphae
Definition

tiny filaments which make up the bodies of fungi

composed of tubular walls surrounding plasma membranes and cytoplasm

Term
mycelium
Definition
  • the hyphae forms an interwoven map
  • the feeding network of a fungus
Term
septa
Definition
cross walls that divide the hyphae into cells
Term
chitin
Definition
fungi build thei cell walls with this material.  It is a strong but flexible nitrogen containing polysaccharide
Term
coenocytic
Definition
hyphae not divided into cells by cross walls.  consist of a continuous cytoplasmic mass with hundreds or thousands of nuclei
Term
haustoria
Definition
hyphae of parasitic fungi modified to penetrate and absorb nutrients from host tissue (ex. namatode)
Term
heterokaryon
Definition
a mycelin formed by the fusion of two hyphae that have genetically different nuclei
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