Fungi Flashcards
What do cyanobacteria have that allows them to fix nitrogen?
Heterocysts.
Does the Eukarya branch result from bacteria or archeae?
It’s a mixture of both.
What is Commensalism?
One organism benefits; the other is neither harmed nor helped (+/N).
What is Parasitism?
One organism benefits; the other is harmed (+/-).
What is mutualism?
Both organisms benefit (+/+).
Are fungi heterotrophic or autotrophic?
Heterotrophic.
How do fungi digest food?
They do so extracellular followed by absorption.
What are fungi cell walls made up of?
Chitin
What are the bodies of fungi typically made up of?
Filaments called hyphae.
What 3 important functions do fungi serve ecologically?
- They are decay organisms especially in low ph. 2. Parasites. 3. Partners in mutualistic relationships.
What are the two fungi to know for lecture?
- Chytrids (Polyphyletic). 2. Arbuscular Mycorrhizae (Glomeromycota).
When will fungi typically expend energy for growth?
If limited by space or resources.
What are Plasmodial Slime molds?
They are Protists. In general, they are heterotrophic predators of bacteria.
How do plasmodial slime molds move and ingest prey?
They are amoeboid. And they ingest prey by phagocytosis.
All known species of Glomeromycota grow in association with what?
In association with roots, forming mycorrhizas, which are “fungus roots”. They can not grow without the host plant.
