Fungi

Question 1

Characteristics of Fungi

Answer 1

1) Chemoheterotrophic
2) External digestion by exoenzymes, including of cellulose, lignin, chitin, keratin
3) Hyphae (Mycelium)
4) Chitin cell walls
5) Reproduce sexually and asexually (via spores)

Question 2

Chytrids

Answer 2

• Unicellular or Colonial (with rhizoids)
• Flagellated spores (zoospores)
• “No hyphae”

Question 3

Zygomycetes

Answer 3

• Hyphae without septa (coenocytic)

- Named for zygosporangia, where karyogamey and meiosis take place

Question 4

Glomeromycetes

Answer 4

• Symbiotic relationships with roots of plants
• Arbuscular mycorrhizae
• A sexual reproduction (spores)

Question 5

Ascomycetes

Answer 5

• Produce sexual spores in Asci, within ascocarp fruiting bodies. Spores are conidia, produced in conidiophores.
• Dikarya; septate hyphae

Question 6

Basidomycetes

Answer 6

• Long lived dikaryotic mycelium
• Named for basidium, transient diploid life cycle stage
• Basidiocarp; fruiting body