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Flashcards for Chapter 12
Flashcards for Chapter 12 in Mr. Richards Sophomore Biology Class
18
Biology
10th Grade
02/06/2012

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Term
What are the 3 detrimental aspects of fungi?
Definition
1. Chestnut blight fungus
2. Dutch elmr disease
3. Damage to food crops
Term
What is the Chestnut blight fungus?
Definition
it is where fungi destroy the host which has eliminated the American chestnut from the forest
Term
What is Dutch elm disease?
Definition
it causes the breakdown of water conduction tissues of the Dutch elm tree causing the tree to die
Term
What are the 3 beneficial aspects of fungi?
Definition
1. Food
2. Medicine
-produced penecillin
3. Decomposition
-decomposes dead organisms
Term
What are 3 examples of food produced by fungi?
Definition
1. Yeast
2. Cheese
3. Mushrooms
Term
Explain Fungi Digestion.
Definition
The fungus secretes digestive enzymes taht digest the food into a soluble form of food outside the organism. The soluble food is then absorbed into/by the food.
Term
Explain colonial growth of fungi.
Definition
colonies of fungus are made up of hyphae which have spread out underground in order to gain nutrients. When conditions are right, mushrooms appear from the spores that the hyphae contain.
Term
What is a Lichen?
Definition
Lichens are groups of fungus and algae cells living together
Term
How does a lichen represent symbiosis?
Definition
In Lichens, the algae captures energy and produces sugars for itself and the fungus which provides support and protection for the algae
Term
What are hyphae?
Definition
the slender filaments that compose the mycelium of a fungus
Term
What is mycelium?
Definition
all of the hyphae in a fungus
Term
Why do mycelium spread under ground?
Definition
to search for food
Term
What are spores?
Definition
a cell with a hard protective covering that is capable of producing a new organism
Term
What is the cap of the mushroom?
Definition
the structure that contains the gills
Term
What are gills?
Definition
the thin spore-producing membrance of cefrtain fungi
Term
What makes a spore bud?
Definition
the presence of right conditions
Term
What do mushrooms need to grow?
Definition
dead material and moisture
Term
What does safrofitic mean?
Definition
that something feeds on dead material
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