chap 31 quiz

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Ectomycorrhizae, associations in which the fungal hyphae surround but do not penetrate the cell walls of the plant roots, usually involve

basidiomycetes.

One major difference between ectomycorrhizae and arbuscular mycorrhizae is

ectomycorrhizae do not penetrate plant roots; arbuscular mycorrhizae penetrate plant roots.

A symbiotic association between a fungus and a green alga or a cyanobacterium is called a

lichen

A mass of hyphae in an ascomycete is commonly referred to as a(n)

mycelium

Specialized symbiotic associations between the roots of plants and fungi are called

mycorrhizae

A scientist discovers a fungus living within a healthy plant. The fungus produces a substance toxic to herbivores. This fungus is considered

a mutualistic endophyte.

The cell walls of fungi are made up of polysaccharides and

chitin

The fungal group that is most closely related to ancestral fungi are the

chytridomycota (chytrids).

Asexual reproduction in ascomycetes takes place by means of

conidia

A division of fungi that lacks septa in their hyphae except when they form sporangia or gametangia is the

zygomycetes


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