Flashcards

Mycorrhizae

Alice Hathaway Biology A Level English 11 cards

Cards in this deck (11)

1What is mycorrhizae?Mutualistic relationship between a fungus and a plant
2What does mycorrhizae mean?Root fungus
3What is an example of a mycorrhizal relationship?Silver birch tree and fly agaric fungi
4What is the hyphae?The (often microscopic) network of threads
This is the main part of the fungus
5What is the fungal mycelium?The main part of the fungi
6How do the tree and fungi combine?The hyphae in mycorrhizae grow around the tree roots and sometimes penetrate the roots
7What does the hyphae get?Minerals and water that are passed into the root's xylem
8What does this do for the tree?Greatly increases the surface area of the root system
9What does the fungus get in return?A source of sucrose
10What is another benefit for the tree?A source of nitrates for growth
11Where do these nitrates come from?Fungi are saprobionts hence carry out ammonification, increasing the ammonia and hence nitrate content of the soil around the tree

Description: Biology A Level (Nutrient Cycles) Flashcards on Mycorrhizae, created by Alice Hathaway on 11/11/2017.
Created by: Alice Hathaway
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