Chapter 30 Fungus Flashcards
How do fungi differ from plants?
No photosynthesis and has chitin
Absorptive Heterotrophy
Digests food by releasing chemicals to break down nutrients and absorb through the membrane
Chitin
Durable reinforcing chemical, polysaccharide
Where are fungi found?
Essentially in all habitats
What is an example of the unicellular form of fungi?
Yeast
What are multicellular fungi composed of?
Filamentous hyphae
Hyphae can contain two structures
Septum and pores
Mycelium
Mass of hyphae together, can produce fruiting bodies
How long can mycelium grow?
Can grow up to miles long
Example of a fruiting body from mycelium
Mushroom
SA to V ratio of fungi; restraints?
How will; O2 to entire body, waste removed, regulate temperature, provide energy
Why are fungi limited in body size?
Volume grows faster than the surface area
Saprobes
Attack/breakdown dead organisms
Detritus
Waste, dead debris
Why is being a sap robe important?
Nutrients are then freed for use
Symbionts
Adapted to a host, live together
Parasites
Attack plants, humans
An example of a parasite
Athlete’s foot
Predators
Animal that exploits other animals
Example of a predator
Set a snare; trap worm in hyphae loop
Two mutualistic species
Lichens and mycorrhizae
Mutualism
Mutually beneficially symbiosis
Describe the mutualistic relationship with Lichens and fungi
Lichens take up energy and carbon through PSN and fungi provides minerals, water, and an anchor or habitat
Describe the mutualistic relationship with mycorrhizae and fungi
Vascular plant provides energy and carbon, fungus absorbs and delivers nutrients
How do fungi reproduce?
Sexually; use fertilization and meiosis
Types of fungi mating
+/- must reproduce with the opposite, secrete and attractant
How are the fungal taxonomy created?
Based largely on reproductive characteristics
