Question 1

A mature walled ascus of an ascomycete usually contains

Accepted Answer

A) eight diploid nuclei. 
B) eight haploid nuclei. 
C) many multinucleate conidia. 
D) an egg and a sperm. 
E) a zygote. 
A) eight diploid nuclei. 
B) eight haploid nuclei. 
C) many multinucleate conidia. 
D) an egg and a sperm. 
E) a zygote.

Question 2

Why are microsporidia so hard to classify?

Accepted Answer

A) When compared to other eukaryotic organisms,microsporidia are extremely small. 
B) The intracellular parasitic lifestyle greatly reduces the need for functional organelles. 
C) They lack nuclei. 
D) They are very rare. 
A) When compared to other eukaryotic organisms,microsporidia are extremely small. 
B) The intracellular parasitic lifestyle greatly reduces the need for functional organelles. 
C) They lack nuclei. 
D) They are very rare.

Question 3

What type of fungi are obligate symbionts with plant roots and played a key role in the colonization of lands by plant?

Accepted Answer

A) glomeromycetes 
B) zygomycetes 
C) chytridiomycetes 
D) blastocladiomycetes 
E) microsporidians 
A) glomeromycetes 
B) zygomycetes 
C) chytridiomycetes 
D) blastocladiomycetes 
E) microsporidians

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. 
E) most ectomycorrhizae are zygomycetes while most endomycorrhizae are basidiomycetes. 
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. 
E) most ectomycorrhizae are zygomycetes while most endomycorrhizae are basidiomycetes.

Question 5

All of the following are reproductive structures found in some fungi except

Accepted Answer

A) ascus. 
B) basidium. 
C) sporangiophore. 
D) mycorrhiza. 
E) conidia. 
A) ascus. 
B) basidium. 
C) sporangiophore. 
D) mycorrhiza. 
E) conidia.

Question 6

Which one of the following fungal groups has an alternation of multicellular gametophyte and sporophyte generations?

Accepted Answer

A) Zygomycetes 
B) Ascomycetes 
C) Blastocladiomycota 
D) Chytridiomycetes 
E) Glomeromycetes 
A) Zygomycetes 
B) Ascomycetes 
C) Blastocladiomycota 
D) Chytridiomycetes 
E) Glomeromycetes

Question 7

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 8

Fungi are currently classified as six monophyletic groups based on characteristics of the cells undergoing meiosis.

Accepted Answer

A) True 
 B)False

Question 9

Asexual reproduction in ascomycetes takes place by means of

Accepted Answer

A) ascogonia. 
B) ascospores. 
C) conidia. 
D) motile gametes. 
E) zygospores. 
A) ascogonia. 
B) ascospores. 
C) conidia. 
D) motile gametes. 
E) zygospores.

Question 10

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.

Question 11

Lichens are adversely affected by

Accepted Answer

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

Question 12

The rusts and smuts that seriously affect crop plants are

Accepted Answer

A) ascomycetes. 
B) zygomycetes. 
C) chytrids. 
D) basidiomycetes. 
E) actinomycetes. 
A) ascomycetes. 
B) zygomycetes. 
C) chytrids. 
D) basidiomycetes. 
E) actinomycetes.

Question 13

Mushrooms are fungi belonging to the phylum ________.

Accepted Answer

The answer of Mushrooms are fungi belonging to the phylum...

Question 14

Which one of the following terms best applies to the fungus participant in a typical lichen?

Accepted Answer

A) Mutualist 
B) Ectomycorrhizal fungus 
C) Arbuscular mycorrhizal fungus 
D) Epiparasite 
A) Mutualist 
B) Ectomycorrhizal fungus 
C) Arbuscular mycorrhizal fungus 
D) Epiparasite

Question 15

The symbiotic relationship between green algae or cyanobacteria and fungi produce ________.

Accepted Answer

The answer of The symbiotic relationship between green algae or...

Question 16

Fungi exist mainly in the form of slender filaments,barely visible to the naked eye,which are called ________.

Accepted Answer

The answer of Fungi exist mainly in the form of...

Question 17

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

Question 18

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 19

A nonphotosynthetic plant sharing a mycorrhizal fungus with a photosynthetic plant is best described as a(n)

Accepted Answer

A) mutualist. 
B) epiparasite. 
C) parasite. 
D) host. 
E) symbiont. 
A) mutualist. 
B) epiparasite. 
C) parasite. 
D) host. 
E) symbiont.

Question 20

In what way are bacteria and fungi similar?

Accepted Answer

A) Ecological function 
B) Cell wall components 
C) Design of the nucleus 
D) Ribosome structure 
A) Ecological function 
B) Cell wall components 
C) Design of the nucleus 
D) Ribosome structure

Exam 31: Fungi

A mature walled ascus of an ascomycete usually contains

Why are microsporidia so hard to classify?

What type of fungi are obligate symbionts with plant roots and played a key role in the colonization of lands by plant?

One major difference between ectomycorrhizae and arbuscular mycorrhizae is

All of the following are reproductive structures found in some fungi except

Which one of the following fungal groups has an alternation of multicellular gametophyte and sporophyte generations?

In basidiomycetes the ________ is diploid.

Fungi are currently classified as six monophyletic groups based on characteristics of the cells undergoing meiosis.

Asexual reproduction in ascomycetes takes place by means of

How does fungal mitosis differ from animal mitosis?

Lichens are adversely affected by

The rusts and smuts that seriously affect crop plants are

Mushrooms are fungi belonging to the phylum ________.

Which one of the following terms best applies to the fungus participant in a typical lichen?

The symbiotic relationship between green algae or cyanobacteria and fungi produce ________.

Fungi exist mainly in the form of slender filaments,barely visible to the naked eye,which are called ________.

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

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?

A nonphotosynthetic plant sharing a mycorrhizal fungus with a photosynthetic plant is best described as a(n)

In what way are bacteria and fungi similar?

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