Question 1

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

Accepted Answer

A)  mutualist.
B)  epiparasite.
C)  parasite.
D)  host.
E)  symbiont.F) All of the above
G) C) and D)

Question 2

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

Accepted Answer

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

Question 3

The most economically useful unicellular fungi are

Accepted Answer

A)  basidiomycetes.
B)  actinomycetes.
C)  yeasts.
D)  mushrooms.
E)  Neurospora.F) B) and E)
G) A) and C)

Question 4

Fungi are ecologically important because of all of the following except

Accepted Answer

A)  they break down organic material and return them to the ecosystem.
B)  all can exist in symbiotic relationships.
C)  some can ferment and produce bread,beer,wine,cheese,and soy sauce.
D)  some cause diseases in plants and animals.
E)  they can break down lignin.F) A) and B)
G) A) and C)

Question 5

Fungi can be characterized by all of the following properties except

Accepted Answer

A)  being heterotrophic.
B)  having filamentous bodies.
C)  having nonmotile sperm.
D)  having chitin cell walls and mitosis taking place within the nucleus.
E)  reproducing only sexually.F) D) and E)
G) B) and E)

Question 6

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

Question 7

Which one of the following statements comparing ascomycetes and basidiomycetes is false?

Accepted Answer

A)  Both ascomycetes and basidiomycetes have secondary myceliA.
B)  In both ascomycetes and basidiomycetes,the zygote is the only diploid stage.
C)  In both ascomycetes and basidiomycetes,spores are the dispersal stage of the life cycle.
D)  In both ascomycetes and basidiomycetes,only the fruiting bodies (ascocarp and basidiocarp) are conspicuous.
E)  Although some ascomycetes are unicellular,all basidiomycetes are multicellular.F) A) and E)
G) All of the above

Question 8

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

Question 9

Choose the letter of the best match from the following:
-Asexual reproduction by conidia;spores contain eight haploid nuclei;yeasts.

Accepted Answer

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

Question 10

Which one of the following statements comparing ascomycetes and zygomycetes is false?

Accepted Answer

A)  Both ascomycetes and zygomycetes have a dikaryotic stage.
B)  Both ascomycetes and zygomycetes can produce spores asexually.
C)  Plasmogamy precedes syngamy in both ascomycetes and zygomycetes.
D)  The sporangiophore in zygomycetes and the ascus in ascomycetes are the fruiting structures where meiosis occurs.
E)  Both ascomycetes and zygomycetes consist of fungi that are absorptive heterotrophs.F) All of the above
G) A) and B)

Question 11

Ectomycorrhizae,associations in which the fungal hyphae surround but do not penetrate the cell walls of the plant roots,usually involve

Accepted Answer

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

Question 12

Which one of the following associations of structures/events from the life cycle of basidiomycetes is incorrect?

Accepted Answer

A)  primary mycelium-dikaryon
B)  basidiocarp-secondary mycelium
C)  basidium-basidiospores
D)  zygote-meiosis
E)  secondary mycelium-1n + 1nF) None of the above
G) A) and D)

Question 13

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 14

Which one of the following statements about the evolution of the fungal kingdom is false?

Accepted Answer

A)  Fungi are more closely related to animals than to plants.
B)  The deuteromycetes is an artificial group.
C)  The chytridomycetes most closely resemble the ancestor of all fungi.
D)  Presence of non-motile zoospores is an ancestral trait to all fungi.
E)  The first fungi probably evolved in an aqueous environment.F) C) and D)
G) C) and E)

Question 15

The rusts and smuts that seriously affect crop plants are

Accepted Answer

A)  ascomycetes.
B)  zygomycetes.
C)  chytrids.
D)  basidiomycetes.
E)  actinomycetes.F) A) and B)
G) None of the above

Question 16

If you arranged the following fungal structures from most inclusive to least inclusive,which structure would be fourth?

Accepted Answer

A)  septum
B)  fruiting body (like ascocarp or basidiocarp) 
C)  hyphae
D)  spore
E)  myceliumF) B) and D)
G) A) and D)

Question 17

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

Accepted Answer

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

Question 18

Choose the letter of the best match from the following:
-Aquatic,flagellated fungi;one species parasitic of amphibians.

Accepted Answer

A)  ascomycota
B)  zygomycota
C)  basidiomycota
D)  chytridsE) B) and C)
F) A) 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)  budding.F) A) and E)
G) None of the above

Question 20

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

Accepted Answer

The answer of The yeasts,common molds,morels,and truffles are common and...

Exam 31: Fungi

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The most economically useful unicellular fungi are

Correct AnswerverifiedShow Answer

Which one of the following statements about the evolution of the fungal kingdom is false?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Choose the letter of the best match from the following: -Asexual reproduction by conidia;spores contain eight haploid nuclei;yeasts.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which one of the following statements comparing ascomycetes and zygomycetes is false?

Correct AnswerverifiedShow Answer

If you arranged the following fungal structures from most inclusive to least inclusive,which structure would be fourth?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Fungi are ecologically important because of all of the following except

Correct AnswerverifiedShow Answer

Which one of the following statements comparing ascomycetes and basidiomycetes is false?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The rusts and smuts that seriously affect crop plants are

Correct AnswerverifiedShow Answer

Ectomycorrhizae,associations in which the fungal hyphae surround but do not penetrate the cell walls of the plant roots,usually involve

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Fungi can be characterized by all of the following properties except

Correct AnswerverifiedShow Answer

Choose the letter of the best match from the following: -Aquatic,flagellated fungi;one species parasitic of amphibians.

Correct AnswerverifiedShow Answer

Which one of the following associations of structures/events from the life cycle of basidiomycetes is incorrect?

Correct AnswerverifiedShow Answer

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