Question 1

Mycorrhizae, specialized symbiotic associations between the roots of plants and fungi, are characteristic of

Accepted Answer

A) all plants. 
B) about 90% of all plants. 
C) about 60% of all plants. 
D) about 40% of all plants. 
A) all plants. 
B) about 90% of all plants. 
C) about 60% of all plants. 
D) about 40% of all plants.

Question 2

In basidiomycetes the _______ is diploid.

Accepted Answer

A) basidium 
B) primary mycelium 
C) secondary mycelium 
D) zygote 
A) basidium 
B) primary mycelium 
C) secondary mycelium 
D) zygote

Question 3

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

Accepted Answer

A) mycelium. 
B) mycorrhizae. 
C) conidium. 
D) sporangium. 
A) mycelium. 
B) mycorrhizae. 
C) conidium. 
D) sporangium.

Question 4

One major difference between ectomycorrhizae and arbuscular mycorrhizae is

Accepted Answer

A) ectomycorrhizae are parasitic on plant roots while arbuscular mycorrhizae are not. 
B) ectomycorrhizae do not penetrate plant roots; arbuscular mycorrhizae penetrate plant roots. 
C) ectomycorrhizae are more common on plant roots than arbuscular mycorrhizae. 
D) ectomycorrhizae form mutualisms while arbuscular mycorrhizae are parasitic. 
A) ectomycorrhizae are parasitic on plant roots while arbuscular mycorrhizae are not. 
B) ectomycorrhizae do not penetrate plant roots; arbuscular mycorrhizae penetrate plant roots. 
C) ectomycorrhizae are more common on plant roots than arbuscular mycorrhizae. 
D) ectomycorrhizae form mutualisms while arbuscular mycorrhizae are parasitic.

Question 5

In leaf cutter ant colonies, the ants clip leaves to feed a fungus garden and then the ants feed on the fungus.Is this a mutualistic relationship?

Accepted Answer

A) No, the ants are parasites on both the leaves and fungus. 
B) Yes, the ants and the trees are in a mutualistic relationship. 
C) No, the ants are leaf parasites but have no relationship with the fungus. 
D) Yes, the ants and the fungus are engaged in a mutually beneficial symbiotic relationship. 
A) No, the ants are parasites on both the leaves and fungus. 
B) Yes, the ants and the trees are in a mutualistic relationship. 
C) No, the ants are leaf parasites but have no relationship with the fungus. 
D) Yes, the ants and the fungus are engaged in a mutually beneficial symbiotic relationship.

Question 6

Fungi are ecologically important for all of the following reasons, except

Accepted Answer

A) They break down organic materials and return them to the ecosystem. 
B) All can exist in symbiotic relationships. 
C) Some can ferment and produce bread, beer, wine, cheese, and soy sauce. 
D) Some cause diseases in plants and animals. 
A) They break down organic materials and return them to the ecosystem. 
B) All can exist in symbiotic relationships. 
C) Some can ferment and produce bread, beer, wine, cheese, and soy sauce. 
D) Some cause diseases in plants and animals.

Question 7

Zygospores are used to resist harsh conditions.

Accepted Answer

A) True 
 B)False

Question 8

Which of the phyla of fungi is incorrectly matched with its example?

Accepted Answer

A) Ascomycota-yeast 
B) Basidiomycota-rust 
C) Zygomycota-bread mold 
D) Ascomycota-mushrooms 
A) Ascomycota-yeast 
B) Basidiomycota-rust 
C) Zygomycota-bread mold 
D) Ascomycota-mushrooms

Question 9

Lichens are adversely affected by

Accepted Answer

A) humidity. 
B) sunlight. 
C) pollution. 
D) sexual reproduction of the fungal partner. 
A) humidity. 
B) sunlight. 
C) pollution. 
D) sexual reproduction of the fungal partner.

Question 10

The most economically useful unicellular fungi are

Accepted Answer

A) basidiomycetes. 
B) actinomycetes. 
C) yeasts. 
D) mushrooms. 
A) basidiomycetes. 
B) actinomycetes. 
C) yeasts. 
D) mushrooms.

Question 11

How does fungal mitosis differ from animal mitosis?

Accepted Answer

A) Cytokinesis only occurs in fungal mitosis. 
B) The nuclear envelope remains intact in fungal mitosis. 
C) The spindle apparatus is unique to fungal mitosis. 
D) Fungi only undergo meiosis, true mitosis is only found in animals. 
A) Cytokinesis only occurs in fungal mitosis. 
B) The nuclear envelope remains intact in fungal mitosis. 
C) The spindle apparatus is unique to fungal mitosis. 
D) Fungi only undergo meiosis, true mitosis is only found in animals.

Exam 32: Fungi

Mycorrhizae, specialized symbiotic associations between the roots of plants and fungi, are characteristic of

In basidiomycetes the _______ is diploid.

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

One major difference between ectomycorrhizae and arbuscular mycorrhizae is

In leaf cutter ant colonies, the ants clip leaves to feed a fungus garden and then the ants feed on the fungus.Is this a mutualistic relationship?

Fungi are ecologically important for all of the following reasons, except

Zygospores are used to resist harsh conditions.

Which of the phyla of fungi is incorrectly matched with its example?

Lichens are adversely affected by

The most economically useful unicellular fungi are

How does fungal mitosis differ from animal mitosis?

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