Bio 108 - Lecture 14 / 15 Flashcards
Who is Kingdom Fungi Most Closely Related to?
Kingdom Animalia
What is “Opishtokonta”
A clade including fungi and animals
Opistho =
Posterior
Myco =
Fungus
Something that all fungi are?
Chemoheterotrophs
What are Exoenzymes?
Enzymes that fungi secrete outside of their body
Enzymes break down which organic molecules in animals and plants?
Plants: Cellulose and Lignin
Animals: Karatin and Chitin
What are Fungi Cell Walls Made from?
Chitin
Bodies of most fungi are composed of…
Hyphae
What is Mycelium? And What is its role?
Interwoven hyphal mat
Acts as feeding network
2 Main types of Hyphae? And Characteristics of Each
1) Septate - Have cross walls deciding cells into seperate chambers
2) Coenocytic - Lack cross walls
What ploidy are fungi spores and how are they made?
They are always 1n and they are made through mitosis and meiosis
What is Plasmogamy?
The fusion of two cytoplasms
What is a Heterkaryon?
A mycelium with two or more different genotypes of nuclei
What is a dikaryotic State?
When two genetically distinct nuclei move in together and share one hypal compartment
What is it called when two fungi nucleus fuse?
Karyogamy
Some Features of Chytridiomycota
Flagellated stages
- Undergo alternation of generations
- Implicated in the global decline of amphibians
Zygo =
Joined, twinned
Some Features of Phylum Zygomycota
- Few are parasites
- Most are like Rhizopus Stolonifer (mould)
- Coenocytic Hyphae
Some Features of Phylum Glomeromycota
All species are in a symbiotic relationship with roots
- growth inside and outside roots
glom = ball of thread