Brooks Biodiversity Unit 2 Exam
The Primary role of Fungi - ANSWERDecomposers- they break things down
Modes of Nutrition in Fungi - ANSWERHeterotrophs with extracellular digestion
Exoenzymes - ANSWERFungi Release these enzymes outside of the cell wall. Break down complex
molecules into smaller organic molecules which can be absorbed.
Extracellular Digestion - ANSWERThe release of exoenzymes out side of the cell wall, followed by the
absorption of nutrients..
Saprobes - ANSWERFungi that feed on non-living/dead organisms
Symbionts - ANSWERFungus that lives with another living organism (form a symbiotic relationship)
Mutualism in Fungi - ANSWERboth organisms benefit, neither is harmed.
Ex: Lichens - fungi and algae (cyanobacteria)
Ex: Mycorrhizae - fungi and plant roots
Commensalism - ANSWEROne organism benefits, the other is unharmed
Parasitism - ANSWEROne organism benefits, the other is harmed
,Examples of Parasitism in Fungi - ANSWEREx: Fungus as a human parasite (Athelete's Foot)
Ex: Fungus as a plant parasite
1. black stem rust on wheat
2. ergots on rye
3. strawberries with botrytis mold
4. pink ear rot of corn
Black Stem Rust - ANSWERParasitic relationship with fungus and plant. Occurs on wheat
Ergots - ANSWERParasitic relationship with fungus and plant that occurs on rye and gives
hallucinogenic sensations
Botrytis Mold - ANSWERParasitic relationship with fungus and plants that occurs on strawberries
Fungi Characteristics - ANSWER1. Heterotrophic
2. Extracellular Digestion
3. Chitin-Based Cell wall
4. Most fungi are made up of filaments called Hyphae
Hyphae - ANSWERfilaments (long and branching) that make up the structure of a fungus
In most fungi, hyphae are the main mode of vegetative growth
Hyphae are Septate or Coenocytic
Yeast - ANSWERYeast is a unicellular fungi and do not have/grow hyphae
MOST FUNGI ARE MULTICELLULAR, BUT YEAST IS UNICELLULAR
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The Primary role of Fungi - ANSWERDecomposers- they break things down
Modes of Nutrition in Fungi - ANSWERHeterotrophs with extracellular digestion
Exoenzymes - ANSWERFungi Release these enzymes outside of the cell wall. Break down complex
molecules into smaller organic molecules which can be absorbed.
Extracellular Digestion - ANSWERThe release of exoenzymes out side of the cell wall, followed by the
absorption of nutrients..
Saprobes - ANSWERFungi that feed on non-living/dead organisms
Symbionts - ANSWERFungus that lives with another living organism (form a symbiotic relationship)
Mutualism in Fungi - ANSWERboth organisms benefit, neither is harmed.
Ex: Lichens - fungi and algae (cyanobacteria)
Ex: Mycorrhizae - fungi and plant roots
Commensalism - ANSWEROne organism benefits, the other is unharmed
Parasitism - ANSWEROne organism benefits, the other is harmed
,Examples of Parasitism in Fungi - ANSWEREx: Fungus as a human parasite (Athelete's Foot)
Ex: Fungus as a plant parasite
1. black stem rust on wheat
2. ergots on rye
3. strawberries with botrytis mold
4. pink ear rot of corn
Black Stem Rust - ANSWERParasitic relationship with fungus and plant. Occurs on wheat
Ergots - ANSWERParasitic relationship with fungus and plant that occurs on rye and gives
hallucinogenic sensations
Botrytis Mold - ANSWERParasitic relationship with fungus and plants that occurs on strawberries
Fungi Characteristics - ANSWER1. Heterotrophic
2. Extracellular Digestion
3. Chitin-Based Cell wall
4. Most fungi are made up of filaments called Hyphae
Hyphae - ANSWERfilaments (long and branching) that make up the structure of a fungus
In most fungi, hyphae are the main mode of vegetative growth
Hyphae are Septate or Coenocytic
Yeast - ANSWERYeast is a unicellular fungi and do not have/grow hyphae
MOST FUNGI ARE MULTICELLULAR, BUT YEAST IS UNICELLULAR
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a3ANSWERYoua3cana3seea3thea3cella3separationa3becausea3thea3nucleia3area3confineda3ina3anda3separated
a3bya3cella3walls
Thinka3"separate"
Coenocytica3-
a3ANSWERYoua3canta3seea3thea3cella3separation.a3Ita3isa3multinucleateda3meaninga3thata3therea3area3mul
tiplea3nucleia3nota3separateda3bya3aa3cella3wall
Thallus/Myceliuma3-
a3ANSWERcollectivelya3refersa3toa3aa3buncha3ofa3hyphaea3thata3togethera3makea3upa3thea3bodya3ofa3thea
3fungus
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