Question 1

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)  ChytridiomycetesE) A) and B)
F) B) and C)

Question 2

Fungal hyphae in which two genetically distinct kinds of nuclei occur together are said to be __________.

Accepted Answer

The answer of Fungal hyphae in which two genetically distinct...

Question 3

The fruiting structures formed by secondary mycelia of basidiomycetes are known as

Accepted Answer

A)  mushrooms.
B)  yeasts.
C)  lichen.
D)  ascocarps.E) A) and C)
F) C) and D)

Question 4

Lichens are mutualisms between

Accepted Answer

A)  yeast and another fungi.
B)  fungi and an alga.
C)  fungi and a green plant.
D)  fungi and a mycorrhizae.E) A) and D)
F) A) and C)

Question 5

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

Accepted Answer

A)  Zygomycota.
B)  Chytridomycota.
C)  Ascomycota.
D)  Basidomycota.E) A) and C)
F) B) and C)

Question 6

Alexander Fleming kept finding mold contamination that was killing his bacterial cultures.This observation eventually lead to the development of the antibiotic penicillin.Why would a fungus produce a compound that is selectively toxic to bacteria?

Accepted Answer

A)  Fungi eat bacteria.
B)  Fungi are killed by bacterial toxins.
C)  Fungi compete with bacteria for resources.
D)  Killing bacteria is an accident.E) A) and B)
F) A) and D)

Question 7

Comparisons of DNA sequences have revealed that glomeromycetes are not in the same clade as the zygomycetes.

Accepted Answer

A) True 
 B)False

Question 8

In what way are bacteria and fungi similar?

Accepted Answer

A)  Ecological function
B)  Cell wall components
C)  Design of the nucleus
D)  Ribosome structureE) A) and C)
F) A) and B)

Question 9

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.E) A) and B)
F) All of the above

Question 10

What type of symbiotic relationship is exemplified by athlete's foot?

Accepted Answer

A)  Mutualism
B)  Commensalism
C)  Parasitism
D)  AtavismE) A) and D)
F) None of the above

Question 11

Arbuscular mycorrhizae are characterized by all of the following features except

Accepted Answer

A)  They are the most common mycorrhizal type.
B)  Fungal hyphae penetrate plant root cells.
C)  They are seen in the earliest vascular plant fossils.
D)  The fungus can associate with several species of plants.E) A) and B)
F) B) and D)

Question 12

What type of symbiotic relationship is exemplified by mycorrhizal fungi?

Accepted Answer

A)  Mutualism
B)  Commensalism
C)  Parasitism
D)  AtavismE) A) and D)
F) None of the above

Question 13

Diploid cells of animals and plants are genetically similar to fungal

Accepted Answer

A)  monokaryotic hyphae.
B)  dikaryotic hyphae (1n+1n) .
C)  homokaryotic hyphae.
D)  spores.E) None of the above
F) C) and D)

Question 14

The body of a fungus has several characteristics.One of these is their hyphae, long chains of cells.Which of the following statements best describes the nature of septa and cross walls?

Accepted Answer

A)  Septa of the cross walls are formed on the outside of fungal cells and give the fungal body more rigidity.
B)  Septa form cross walls between the long chains of cells that make up hyphae.
C)  The cross wall within the nuclear membrane of every fungal body forms septa.
D)  Spores of fungi that are formed within reproductive structures have cross walls separated by septa.E) A) and B)
F) A) and C)

Question 15

Why are fungi used to clean oil spills?

Accepted Answer

A)  Fungi use the hydrocarbons in oil instead of CO2 during photosynthesis.
B)  The chemicals in oil kill off the fungus's competitors.
C)  Fungi use the organic molecules in the oil as food.
D)  Fungi store the hydrocarbons in their large central vacuoles.E) None of the above
F) A) and B)

Question 16

The system of fungal filaments that penetrates and grows through the substrate is called a(n)

Accepted Answer

A)  exoskeleton.
B)  hyphal compartment.
C)  mushroom.
D)  mycelium.E) B) and D)
F) A) and B)

Question 17

Why are neocallimastigomycetes being studied for biofuel production?

Accepted Answer

A)  They can ferment glucose into alcohol.
B)  They can release fermentable sugars from structural polysaccharides.
C)  They can generate methane.
D)  They provide energy to power fermentation.E) A) and C)
F) None of the above

Question 18

Ruminant animals have symbiotic fungi which

Accepted Answer

A)  digest cellulose and lignin.
B)  infect milk-producing glands, fermenting the milk.
C)  produce toxins in muscle tissue.
D)  produce natural antibiotics.E) None of the above
F) C) and D)

Question 19

The only diploid cell of the life cycle of basidiomycetes is produced within the basidium by

Accepted Answer

A)  mitosis.
B)  meiosis.
C)  karyogamy.
D)  ascus bursting.E) A) and C)
F) All of the above

Question 20

Baker's yeast is a single-celled ascomycete that is used in bread making.Why does yeast make bread dough rise?

Accepted Answer

A)  Yeast cells suck in air when trapped in dough.
B)  Carbon dioxide is produced during fermentation.
C)  Multiplication of yeast physically expands the dough.
D)  The fungal cells burst causes the dough to expand.E) B) and C)
F) All of the above

Exam 32: Fungi

What type of symbiotic relationship is exemplified by mycorrhizal fungi?

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Ruminant animals have symbiotic fungi which

Correct AnswerverifiedShow Answer

Why are microsporidia so hard to classify?

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Fungal hyphae in which two genetically distinct kinds of nuclei occur together are said to be __________.

Correct AnswerverifiedShow Answer

Why are neocallimastigomycetes being studied for biofuel production?

Correct AnswerverifiedShow Answer

What type of symbiotic relationship is exemplified by athlete's foot?

Correct AnswerverifiedShow Answer

The system of fungal filaments that penetrates and grows through the substrate is called a(n)

Correct AnswerverifiedShow Answer

Arbuscular mycorrhizae are characterized by all of the following features except

Correct AnswerverifiedShow Answer

Diploid cells of animals and plants are genetically similar to fungal

Correct AnswerverifiedShow Answer

The body of a fungus has several characteristics.One of these is their hyphae, long chains of cells.Which of the following statements best describes the nature of septa and cross walls?

Correct AnswerverifiedShow Answer

Comparisons of DNA sequences have revealed that glomeromycetes are not in the same clade as the zygomycetes.

Correct AnswerverifiedShow Answer

In what way are bacteria and fungi similar?

Correct AnswerverifiedShow Answer

The only diploid cell of the life cycle of basidiomycetes is produced within the basidium by

Correct AnswerverifiedShow Answer

Why are fungi used to clean oil spills?

Correct AnswerverifiedShow Answer

Baker's yeast is a single-celled ascomycete that is used in bread making.Why does yeast make bread dough rise?

Correct AnswerverifiedShow Answer

The fruiting structures formed by secondary mycelia of basidiomycetes are known as

Correct AnswerverifiedShow Answer

Lichens are mutualisms between

Correct AnswerverifiedShow Answer

Alexander Fleming kept finding mold contamination that was killing his bacterial cultures.This observation eventually lead to the development of the antibiotic penicillin.Why would a fungus produce a compound that is selectively toxic to bacteria?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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