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Lecture 21 (MT3)
Eukaryotic groups: excavates and unikonts
16
Biology
Undergraduate 1
04/13/2013

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Term
Excavates are a group under the ___ group. They are made up of five smaller groups: diplomonads, parabasalids, heteroloboseans, euglenids and kinetoplastids. Several are parasitic and also lack a ___, which is a derived trait (remember: the anscestor to all eukaryotes had one).
Definition

eukaryotic

 

mitochondria

Term
Trypanosomes belong to the ___ group, which belongs to the ___ group, which belongs to the eukaryotic group.
Definition

kinetoplastids

 

excavates

Term
Most excavates ___ have chloroplasts, although some do through ___ endosymbiosis with green algae.
Definition

do not

 

secondary

Term
Euglenids are a group under ___, which belong to the eukaryotic group. They swim with the help of a flagellum located at their ___ end. Photosynthetic euglenids use chlorophyll a and b, but store energy as ___, NOT starch.
Definition

excavates

 

anterior

 

paramylon

Term
Excavates ONLY reproduce through ___ reproduction.
Definition
asexual
Term
By definition, unikonts have a single ___. Opisthokonts have their ___ located at their ___ end.
Definition

flagellum

 

flagellum

 

posterior

Term
Opisthokonts are a member of the ___ group, which are eukaryotes. They are made up of fungi, animals and choanoflagellates.
Definition
unikont
Term
Fungi obtain their nutrients by secreting ___ onto organic matter and absorbing it.
Definition
digestive enzymes
Term
All fungi share two characteristics: absorptive heterotrophy and a chitinous ___ distinct from bacteria and plants.
Definition
cell wall
Term
Fungi can be uni- or multicellular. Unicellular fungi are known as ___. In multicellular species the body is known as the ___, and individual filaments are called ___. These ___ can either be separated by ___, or be non-separated, ___.
Definition

yeast

 

mycelium

 

hyphae

 

hyphae

 

septa

 

coenocytic

Term
The "Humongous Fungus," an Armillaria gallicawas found in 1992 in ___ and is celebrated at the Fungus Fest. It was ___ acres (15 hectares) large.
Definition

Crystall Falls, Michigan 

 

37

Term
The "Even More Humongous Fungus" was found in 2000 in Oregon. It was ___ acres (900 hectares) large. It was estimated to be more than 2,400 years old and is an Armillaria solidipes.
Definition
2,200
Term
Fungi can either be saprobic or parasitic (feeding on dead or live organic matter, relatively). If they are parasitic, they can either be ___ or ___. Blumeria graminis is an obligate pathogen.
Definition

facultative (can switch between saprobic and parasitic)

 

obligate (must be parasitic)

Term
Fungi can be pathogenic and even predators. Candida albicans is found in patients with HIV. The decline in amphibian population is due to a ___ fungus.
Definition
chytrid
Term
Fungi can form mutalisms with other organisms. A ___ is a fungal association with a photosynthetic microbial organism. A ___ is an association between a fungus and plant roots.
Definition

lichen

 

mycorrhizae

Term
A mycorrhizae is a relationship between a fungus and plant root. It can be extracellular (___-mycorrhizae) or intracellular (___ mycorrhizae). The fungus uptakes normally unobtainable materials like ___ ions and they are in turn granted access to ___ and energy.
Definition

ecto-

 

arbuscular

 

phosphate

 

carbohydrates

 

 

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