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.
E)  about 20% of all plants.F) C) and D)
G) B) and D)

Question 2

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 3

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) A) and B)
G) C) and E)

Question 4

The cell walls of fungi are made up of polysaccharides and

Accepted Answer

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

Question 5

Mushrooms are fungi belonging to the phylum ____________.

Accepted Answer

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

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)  Basidiomycetes
D)  Chytridiomycetes
E)  GlomeromycetesF) A) and D)
G) A) and B)

Question 7

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.F) None of the above
G) D) and E)

Question 8

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) A) and C)
G) D) and E)

Question 9

Choose the letter of the best match from the following:
-Mushrooms are the best known members;rusts and smuts;most hyphae are dikaryotic.

Accepted Answer

A)  ascomycota
B)  zygomycota
C)  basidiomycota
D)  chytridsE) A) and C)
F) C) and D)

Question 10

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) C) and D)
F) None of the above

Question 11

An _____ is a nonphotosynthetic plant-a third member of a symbiotic relationship involving a fungus and another plant,obtaining nutrients from these two members.

Accepted Answer

The answer of An _____ is a nonphotosynthetic plant-a third...

Question 12

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

Accepted Answer

A)  zygomycotA.
B)  chytridomycota (chytrids) .
C)  ascomycota.
D)  basidomycota.
E)  zygomycota.F) A) and D)
G) B) and E)

Question 13

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

Question 14

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 15

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) A) and C)
G) A) and D)

Question 16

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 what septa and cross walls are?

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) A) and D)
G) A) and C)

Question 17

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

Accepted Answer

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

Question 18

Of the following statements about the fungal Phylum Zygomycota,which is incorrect?

Accepted Answer

A)  Sexual reproduction occurs by the fusion of gametangiA.Gametangia may be formed on hyphae of different mating types.
B)  Asexual reproduction occurs more frequently in the Zygomycota than does sexual reproduction.
C)  An example of the Phylum Zygomycota is bread mold.
D)  The phylum Zygomycota has the most species of the three fungal phyla.
E)  Hyphae of Zygomycota produce clumps of erect stalks called sporangiophores.F) C) and E)
G) A) and B)

Question 19

The first antibiotic,Penicillin,that was used on a wide scale was derived from a fungus whose genus name is

Accepted Answer

A)  Penicillium.
B)  streptomycin.
C)  sulfanilamide.
D)  neomycin.
E)  actinomycin.F) All of the above
G) B) and C)

Question 20

Asexual reproduction in ascomycetes takes place by means of

Accepted Answer

A)  ascogoniA.
B)  ascospores.
C)  conidia.
D)  motile gametes.
E)  zygospores.F) All of the above
G) B) and C)

Exam 31: Fungi

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

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

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

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

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Asexual reproduction in ascomycetes takes place by means of

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An _____ is a nonphotosynthetic plant-a third member of a symbiotic relationship involving a fungus and another plant,obtaining nutrients from these two members.

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

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

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One major difference between ectomycorrhizae and arbuscular mycorrhizae is

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

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Select the incorrect statement related to fungi.

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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 what septa and cross walls are?

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The cell walls of fungi are made up of polysaccharides and

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Mushrooms are fungi belonging to the phylum ____________.

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Choose the letter of the best match from the following: -Mushrooms are the best known members;rusts and smuts;most hyphae are dikaryotic.

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Ruminant animals have symbiotic fungi which

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

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Of the following statements about the fungal Phylum Zygomycota,which is incorrect?

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The first antibiotic,Penicillin,that was used on a wide scale was derived from a fungus whose genus name is

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Lichens are adversely affected by

Correct AnswerverifiedShow Answer

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