Question 1

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) All of the above
F) C) and D)

Question 2

The cell walls of fungi are made up of polysaccharides including

Accepted Answer

A)  polyglycans.
B)  phospholipids.
C)  bilipid layers.
D)  glycolipids.
E)  chitin.F) B) and E)
G) A) and D)

Question 3

The most economically useful unicellular fungi are

Accepted Answer

A)  basidiomycetes.
B)  actinomycetes.
C)  yeasts.
D)  mushrooms.E) None of the above
F) All of the above

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)  mycorrhizae and yeast.F) B) and E)
G) A) and C)

Question 5

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)  Cross walls are responsible for the formation of spindle plaques within the hyphae after the septa are produced.F) C) and E)
G) None of the above

Question 6

Fungi,together with bacteria,are the principal ________ in the biosphere.

Accepted Answer

The answer of Fungi,together with bacteria,are the principal ________ in...

Question 7

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 D)
F) C) and D)

Question 8

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)  sporangium.F) All of the above
G) A) and E)

Question 9

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

Accepted Answer

A)  lichens.
B)  hyphal associations.
C)  heterokaryotic junctions.
D)  mycorrhizae.
E)  a mycelial unit.F) B) and D)
G) B) and E)

Question 10

Sexual reproduction in zygomycetes differs from sexual reproduction in basidiomycetes in one key way.Which of the following is true of zygomycetes,but not true of basidiomycetes?

Accepted Answer

A)  Meiosis to produce haploid spores is delayed,resulting in a discrete diploid state
B)  Gametangia of opposite mating types undergo plasmogamy
C)  Mushrooms are formed of secondary (dikaryotic) mycelium
D)  Haploid nuclei fuse in the process of karyogamy to form a diploid nucleusE) A) and B)
F) A) and C)

Question 11

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

Accepted Answer

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

Question 12

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)  The fungal component is a glomeromycete.F) B) and D)
G) All of the above

Question 13

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

Accepted Answer

A)  lichen.
B)  mycorrhiza.
C)  protist.
D)  kelp.
E)  mushroom.F) B) and C)
G) A) and B)

Question 14

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)  triploid cells.F) None of the above
G) A) and B)

Question 15

Fungi are decomposers and obtain their food by ________ the organic molecules released by the action of secreted enzymes.

Accepted Answer

The answer of Fungi are decomposers and obtain their food...

Question 16

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

Accepted Answer

A)  ascomycetes.
B)  zygomycetes.
C)  chytridomycetes
D)  basidiomycetes.E) B) and C)
F) A) and D)

Question 17

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

Accepted Answer

A)  mycelium.
B)  mycorrhizae.
C)  conidium.
D)  sporangium.
E)  ascus.F) None of the above
G) B) and E)

Question 18

The yeasts,common molds,morels,and truffles are common and economically important and also found in the group of fungi called ________.

Accepted Answer

Ascomycete...

Question 19

In the life cycle of a zygomycete,after the zygospore is formed,the next event will be

Accepted Answer

A)  mitosis.
B)  meiosis.
C)  plasmogamy.
D)  karyogamy.
E)  dikaryon formation.F) A) and B)
G) A) and E)

Question 20

Select the incorrect statement related to fungi.

Accepted Answer

A)  All fungi secrete digestive enzymes and practice external digestion.
B)  Some fungi can break down cellulose into its glucose subunits.In addition,some fungi are predaceous.
C)  One method of reproduction in fungi is by flagellated sperm.Water is a requirement for those particular fungi to reproduce.
D)  Some fungi are able to grow to many hectares in size.
E)  Cheese,wine,and soy sauce are but a few examples of foods dependent on fungi for their production.F) B) and D)
G) B) and C)

Exam 31: Fungi

Select the incorrect statement related to fungi.

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Why are fungi used to clean oil spills?

Correct AnswerverifiedShow Answer

The cell walls of fungi are made up of polysaccharides including

Correct AnswerverifiedShow Answer

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

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

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

Correct AnswerverifiedShow Answer

In the life cycle of a zygomycete,after the zygospore is formed,the next event will be

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The yeasts,common molds,morels,and truffles are common and economically important and also found in the group of fungi called ________.

Correct AnswerverifiedAscomycete...View AnswerShow Answer

Diploid cells of animals and plants are genetically similar to fungal

Correct AnswerverifiedShow Answer

Arbuscular mycorrhizae are characterized by all of the following features except

Correct AnswerverifiedShow Answer

The most economically useful unicellular fungi are

Correct AnswerverifiedShow Answer

Fungi are decomposers and obtain their food by ________ the organic molecules released by the action of secreted enzymes.

Correct AnswerverifiedShow Answer

Fungi,together with bacteria,are the principal ________ in the biosphere.

Correct AnswerverifiedShow Answer

Lichens are mutualisms between

Correct AnswerverifiedShow Answer

Sexual reproduction in zygomycetes differs from sexual reproduction in basidiomycetes in one key way.Which of the following is true of zygomycetes,but not true of basidiomycetes?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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Ascomycete...
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