Bio1151b note51

Chapter 31 Quizzes: Self Activities Chapter Cum.

Unit 5: The Evolutionary History of Diversity

Fungi

Review

Fungi are : they cannot make their own food, but feed by secreting and absorbing the digested organic compounds.
Most fungi are , but they can also be and symbionts, and even .
Some fungi have modified hyphae called that penetrate the tissues of their host, and can even be adapted for preying on .
are unicellular, but most fungi are multicellular and have bodies consisting of , and have cell walls made of the polysaccharide .
Fungi produce through or life cycles.
There are five major fungal phyla.
- Chytrids have spores, called .
- Zygomycetes produce spores in oriented , which can be “aimed”.
- Glomeromycetes form mutualistic mycorrhizae with about 90% of plants.
- Ascomycetes produce sexual spores in saclike .
- Basidiomycetes include mushrooms and shelf fungi, as well as some parasites.
Fungi form symbiotic relationships with many organisms.
- Mycorrhizae are vital in natural ecosystems and agriculture.
- Many species of ants and termites raise fungi in fungus “farms”.
- Lichens are a association between photosynthetic microorganisms and a fungus.
Summary.

May 8, 2008 Print