Question 1

Which of the following is NOT an advantage or beneficial material that fungi provide for their photosynthetic symbiont?

Accepted Answer

A)   carbon dioxide
B)   water and minerals
C)   chemicals deterring grazers and pathogens
D)   protection from excess light
E)   oxygenF) A) and E)
G) A) and B)

Question 2

In a lichen, the fungus and the symbiotic algae are highly coevolved.

Accepted Answer

A) True 
 B)False

Question 3

A function of rhizomorphs is:

Accepted Answer

A)   secretion of enzymes
B)   transport of water and minerals
C)   transport of complex carbohydrates
D)   production of spores
E)   formation of dikaryotesF) B) and E)
G) A) and B) B

Question 4

The Glomeromycota are called AM fungi because:

Accepted Answer

A)   They shed their spores only in the morning.
B)   They produce fruiting bodies at night that only last through the following morning.
C)   They produce arbuscular mycorrhizae in the cells of plant roots.
D)   They decompose animal manure.
E)   They grow only on the chaff of ant middens.F) All of the above
G) A) and B)

Question 5

Which of the following statements best describes the difference between a dikaryon and a heterokaryon?

Accepted Answer

A)   There is no difference, the two are identical.
B)   A dikaryotic cell has two nuclei and a heterokaryon has three or more nuclei.
C)   A dikaryotic cell is diploid and a heterokaryon is haploid.
D)   A dikaryotic cell is involved in sexual reproduction and a heterokaryon is involved in asexual reproduction.
E)   A dikaryotic cell is haploid and a heterokaryon is diploid.F) B) and E)
G) C) and D)

Question 6

Fungal spores are dispersed by:

Accepted Answer

A)   wind
B)   pigs
C)   raindrops
D)   flies
E)   all of the choices providedF) A) and E)
G) B) and C) E

Question 7

Fungi differ from plants and animals by having the spindle remaining enclosed within the nuclear envelope during nuclear division.

Accepted Answer

A) True 
 B)False

Question 8

A growing hypha experiences which of the following?

Accepted Answer

A)   transport by vesicles of enzymes from the Golgi apparatus to the hyphal tip
B)   uptake of water by osmosis
C)   extension of the hyphal tip
D)   transport by vesicles of cell-wall materials
E)   all of the other choices providedF) B) and E)
G) C) and E) E

Question 9

Batrachochytrium dendrobatidis is a chytrid fungus that:

Accepted Answer

A)   forms dendritic patterns of wood decay
B)   is a major pollutant in sewage wastewater
C)   readily captures cyanobacteria to form a lichen
D)   causes declines in frog populations
E)   is a major cause of pneumonia in AIDS patientsF) D) and E)
G) A) and E)

Question 10

Wildlife benefit from endophytes because the endophytes cause more luxuriant plant growth.

Accepted Answer

A) True 
 B)False

Question 11

Many kinds of ascomycetes and basidiomycetes have lost the ability to reproduce sexually.

Accepted Answer

A) True 
 B)False

Question 12

The difference between fungal endomycorrhizae and fungal endophytes is:

Accepted Answer

A)   Endomycorrhizae live inside fungi and endophytes live inside plants.
B)   Endomycorrhizae form arbuscules that facilitate exchanges of water and food between the fungus and plant root cells, whereas endophytes invade plant cells and provide the plant with protective antibiotics and toxins.
C)   Endomycorrhizae are beneficial to its host plant but endophytes harm the host plant.
D)   Endomycorrhizae form arbuscules on plant roots that produce toxins killing parasitic nematodes, whereas endophytes assist in the transport of water through the plant.
E)   none of the other choices providedF) C) and D)
G) C) and E)

Question 13

An ascocarp is:

Accepted Answer

A)   a species of carp from the Asco River in Peru that is host to parasitic glomeromycotan fungi
B)   the fruiting body of a sac fungus
C)   an asexual spore of a sac fungus
D)   an asexual spore of a lichen
E)   the fruiting body of wood-decay fungiF) B) and E)
G) B) and C)

Question 14

The distinction between karyogamy and plasmogamy is:

Accepted Answer

A)   Karyogamy is the fusion of nuclei and plasmogamy is the fusion of the cytoplasm.
B)   Karyogamy is the fusion of cytoplasm and plasmogamy is the fusion of nuclei.
C)   Karyogamy is the fusion of dikaryotic cells and plasmogamy is the fusion of gametes.
D)   Karyogamy is the fusion of hyphae and plasmogamy is the fusion of mycelia.
E)   Karyogamy is the fusion of nuclei and plasmogamy is the attack of blood plasma by fungal pathogens.F) All of the above
G) A) and C)

Question 15

The only fungi to produce cells with flagella are:

Accepted Answer

A)   chytrids
B)   choanflagellates
C)   yeasts
D)   conidia
E)   bread moldsF) A) and D)
G) B) and E)

Question 16

Which of the following is NOT a phylum of fungi?

Accepted Answer

A)   Chytridiomycota
B)   Zygomycota
C)   Ascomycota
D)   Basiodiomycota
E)   SaccharomycotaF) A) and D)
G) B) and D)

Question 17

Which of the following functions is NOT carried out by decomposer fungi?

Accepted Answer

A)   break down leaf litter
B)   decay wood
C)   decompose dead animals
D)   recycle essential nutrients
E)   break down pathogenic bacteriaF) B) and D)
G) A) and E)

Question 18

The largest organism ever to have existed in the world is (was)  a:

Accepted Answer

A)   whale
B)   dinosaur
C)   sequoia tree
D)   fungus
E)   mammothF) A) and C)
G) A) and B)

Question 19

The fungus Pneumocystis cariniiis of significance to AIDS patients because:

Accepted Answer

A)   It is transmitted sexually and is the cause of AIDS.
B)   It attacks T-cells in the same way as does AIDS and thereby increases the severity of the disease.
C)   It attacks the AIDS pathogen and thereby reduces the severity of the disease.
D)   It infects individuals whose immune system has been weakened by AIDS and causes pneumonia.
E)   none of the other choices providedF) D) and E)
G) A) and B)

Question 20

Which of the following taxa is NOT known to contain species that cultivate fungi for food?

Accepted Answer

A)   leaf-cutting ants
B)   humans
C)   termites
D)   beetles
E)   nematodesF) A) and C)
G) B) and D)

Exam 31: Fungi

Which of the following is NOT an advantage or beneficial material that fungi provide for their photosynthetic symbiont?

Correct AnswerverifiedShow Answer

In a lichen, the fungus and the symbiotic algae are highly coevolved.

Correct AnswerverifiedShow Answer

A function of rhizomorphs is:

Correct AnswerverifiedB

The Glomeromycota are called AM fungi because:

Correct AnswerverifiedShow Answer

Which of the following statements best describes the difference between a dikaryon and a heterokaryon?

Correct AnswerverifiedShow Answer

Fungal spores are dispersed by:

Correct AnswerverifiedE

Fungi differ from plants and animals by having the spindle remaining enclosed within the nuclear envelope during nuclear division.

Correct AnswerverifiedShow Answer

A growing hypha experiences which of the following?

Correct AnswerverifiedE

Batrachochytrium dendrobatidis is a chytrid fungus that:

Correct AnswerverifiedShow Answer

Wildlife benefit from endophytes because the endophytes cause more luxuriant plant growth.

Correct AnswerverifiedShow Answer

Many kinds of ascomycetes and basidiomycetes have lost the ability to reproduce sexually.

Correct AnswerverifiedShow Answer

The difference between fungal endomycorrhizae and fungal endophytes is:

Correct AnswerverifiedShow Answer

An ascocarp is:

Correct AnswerverifiedShow Answer

The distinction between karyogamy and plasmogamy is:

Correct AnswerverifiedShow Answer

The only fungi to produce cells with flagella are:

Correct AnswerverifiedShow Answer

Which of the following is NOT a phylum of fungi?

Correct AnswerverifiedShow Answer

Which of the following functions is NOT carried out by decomposer fungi?

Correct AnswerverifiedShow Answer

The largest organism ever to have existed in the world is (was) a:

Correct AnswerverifiedShow Answer

The fungus Pneumocystis cariniiis of significance to AIDS patients because:

Correct AnswerverifiedShow Answer

Which of the following taxa is NOT known to contain species that cultivate fungi for food?

Correct AnswerverifiedShow Answer

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E

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