Biology: Fungi(26)

Question 0

mycology

Answer 0

the study of fungi

Question 1

Kingdom Fungi

Answer 1

• eukaryotic
• absorptive heterotrophs
  
  • saprophytic (decomposers)
• cell wall of chitin
• excess sugar stored as glycogen
• mostly multicellular
  
  • many microscopic
  • mold
    
    • tangled masses of filaments
  • yeasts
    
    • unicellular/colonial
• filamentous structure
  
  • hyphae, mycelia

Question 2

fungus structure

Answer 2

• hyphae can be septate or coenocytic
• cells are haploid during most of their life cycle
• some demonstrate dimorphism

Question 3

fungus reproduction

Answer 3

- most use both asexual and sexual modes
Asexual
	- spores
	- budding 
	- fragmentation
sexual
	- plus/minus mating types

Question 4

spores

Answer 4

• spores on modifies cells of hyphae
• when placed in favorable conditions
  
  • germinate and grow new hyphae
  • produce thousands of asexual spores

Question 5

fragmentation

Answer 5

• septate hypha dries and shatters

- releasing individual cells that act as spores

Question 6

budding

Answer 6

• asexual process in which part of a yeast pinches itself off to produce a small offspring cell

Question 7

symbiotic relationships

Answer 7

lichens
- association b/w fungus and algae or cyanobacteria
mycorrhizae
- association b/w fungus and plant roots
- vastly increases root absorption

Question 8

parasitic fungi

Answer 8

1) athletes foot

2) ringworm