Deck 26: The Fungi Eumycota

Question 1

The common fungus Polyporus squamous forms large shelf-like structures that project from the lower portion of dead trees.
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Answer 1

True

Question 2

When infecting a corn plant,Ustilago maydis forms specialize flat hyphae called __________ that enable penetration and subsequent reproduction within the host.
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Answer 2

appressoria

Question 3

Yeast are true eukaryotes with a nucleus,mitochondria,and other membrane bound organelles including flagella.
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Answer 3

False

Question 4

Fungal spores are usually responsible for the bright colors and fluffy textures of the molds that produce them.
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Question 5

Most basidiomycetes are autotrophs that decompose plant debris,especially cellulose and lignin.

Question 6

The ______________ are fungi that lack mitochondria,peroxisomes,and centrioles.
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Question 7

Edible truffles are in the fungal group termed __________,while edible mushrooms are in the fungal group termed __________.

Question 8

Recent analysis indicates that the chytrids are the most primitive division of fungi and that a single event resulted in the loss of flagella in the more advanced fungi.

Question 9

Matching
1)conidia
2)zoospores
3)budding
A.found at the tips of special hyphae
B.reproduction in yeast cells
C.give rise to aquatic fungi
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Question 10

Although mating in yeast strains leads to sexual reproduction,asexual reproduction by budding predominates when cultured on rich growth medium.
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Question 11

Matching
1)ascospores
2)rhizoids
3)basidium
A.penetrate bread
B.mushroom
C.ascus
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Question 12

Sexual spores that are flagellated and produced by the chytrids are called ___________.
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Question 13

______________ are particularly problematic for immunocompromised individuals,especially those with HIV/AIDS.

Question 14

Fungi are essential in industrial production of food and spirits.

Question 15

Some chytrids have true mycelia,but others may consist of a single cell or a small multinucleate mass.
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Question 16

Like some bacteria,fungal cells secrete enzymes that promote exodigestion after which the released nutrients are transported into the cell across the plasma membrane.
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Question 17

Matching
1)alpha-amanitin
2)pink bread mold
3)mucor
A.Ascomycetes
B.Basidiomycetes
C.Zygomycetes

Question 18

Most fungi secure their nutrients from dead organic matter and are therefore called _________.

Question 19

Fungi are found primarily in which of the following environments?

A)marine
B)freshwater
C)terrestrial
D)arboreal

Question 20

The ustilaginomycete Ustilago maydis is _____________; plant-associated fungi grow in the _____________ form but are yeastlike in the external environment.

Question 21

The common bread mold Rhizopus stolonifer belongs to the

A)Zygomycota.
B)Ascomycota.
C)Basidiomycota.
D)Glomeromycota.
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Question 22

Features that are useful for identification of fungal species include

A)size,shape color and number of spores.
B)presence of a membrane bound nucleus.
C)ability to produce chlorophyll a.
D)all of the choices
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Question 23

Fungi

A)absorb nutrients from the environment.
B)take in food by phagocytosis.
C)generate ATP and reducing equivalents by photosynthesis.
D)all of these

Question 24

Fungi form functional associations with which of the following?

A)plant roots
B)phototrophic microbes
C)animals
D)plant roots and phototrophic microbes

Question 25

Zygomycetes live on

A)bread.
B)organic matter in the soil.
C)fruits and vegetables.
D)all of these

Question 26

Which of the following is not true about yeast?

A)Contains two or more nuclei.
B)Reproduces either asexually by budding or sexually through spore formation.
C)Are larger than most bacteria.
D)Possesses eukaryotic organelles.
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Question 27

The tangled mass or tissue-like aggregation in a mold is called a

A)hyphae.
B)hypha.
C)mycelium.
D)thallus.
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Question 28

Diseases in animals caused by fungi are called

A)funguses.
B)mycoses.
C)dictyoses.
D)cystoses.

Question 29

Fungi

A)are eukaryotic organisms.
B)produce chlorophyll under aerobic conditions.
C)are prokaryotes or eukaryotes,depending on the species.
D)produce chlorophyll under aerobic conditions and are prokaryotes or eukaryotes,depending on the species.
Learning Outcome: 26.01.02 Differentiate between a yeast and a mold,and between hypha and mycelium
Section: 26.01

Question 30

Which of the following is not found among the zygomycetes?

A)saprophytic nutrition
B)nonseptate hyphae
C)flagellated cells
D)fusion of gametes
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Question 31

Asexual spores such as conidia develop by the process of

A)meiosis.
B)mitosis.
C)parthenogenesis.
D)fission.
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Question 32

The _________________________ are of critical ecological importance because most are endomycorrhizal symbionts of vascular plants.

A)Glomeromycota
B)Basidiomycota.
C)Deuteromycota.
D)Zygomycota.

Question 33

Asexual reproduction is common in the filamentous ascomycetes and is associated with the production of

A)basidia.
B)conidia.
C)ascospores.
D)zoospores.
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Question 34

The ____________ of the glomeromycetes do not penetrate host root cells; instead,the fungal hyphae grow between and around cells.

A)arbuscular mycorrhizal hyphae
B)progametangia hyphae
C)ectomycorrhizal hyphae
D)stolon hyphae

Question 35

Fungi digest macromolecules by

A)phagocytosis.
B)intracellular digestion.
C)extracellular enzyme activity.
D)active transport.
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Question 36

The primary ecological function of fungi is that of

A)producer.
B)consumer.
C)pathogen.
D)decomposer.

Question 37

The primary storage polysaccharide in Chytridiomycota is

A)glycogen.
B)cellulose.
C)starch.
D)none of the choices

Question 38

The hallucinogen LSD is a product of

A)yeasts.
B)zygomycetes.
C)ascomycetes.
D)basidiomycetes.
Blooms Level: 1.Remember
Learning Outcome: 26.05.05 Recall the origin of St.Anthony's fire,LSD,and "sick building syndrome"
Section: 26.05

Question 39

The fungus used in the production of saki and soy sauce is

A)Aspergillus oryzae.
B)Aspergillus fumigatus.
C)Aspergillus nidulans.
D)Saccharomyces cerevisiae.

Question 40

The sac fungi are distinguished from all other groups of fungi because their reproductive structures are

A)inside an ascus.
B)borne on basidia.
C)zygospores.
D)motile.
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Question 41

The rusts of grain crops are good examples of

A)ascomycetes.
B)basidiomycetes.
C)zygomycetes.
D)they fall in several fungal groupings.

Question 42

A basidium

A)is found inside a fruiting body.
B)is produced at the tip of hyphae.
C)is club-shaped.
D)all of the choices
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Question 43

Asexual reproduction in fungi can be accomplished by

A)binary fission.
B)hyphal fragmentation.
C)budding of somatic vegetative cells.
D)all of the choices
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Question 44

Which of the following yeasts is not pathogenic to humans?

A)Saccharomyces
B)Candida
C)Cryptococcus
D)Saccharomyces and Cryptococcus

Question 45

The ascomycetes are named for their characteristic reproductive structure called a(n)

A)hypha.
B)ascus.
C)thallus.
D)ascocarp.
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Question 46

Included in the basidiomycetes are the

A)stolons.
B)puffballs.
C)yeasts.
D)smuts.
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Question 47

In mushrooms,the sexual spores are produced in a(n)

A)basidium.
B)ascus.
C)sporophyte.
D)sporangiophore.
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Question 48

Human pathogens of the genus Encephalitozoon belong to the

A)Microsporidia.
B)Glomeromycota.
C)Urediniomycetes.
D)Chytridiomycota.
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Question 49

Toadstools are good examples of

A)zygomycetes.
B)ascomycetes.
C)basidiomycetes.
D)yeasts.
Blooms Level: 1.Remember
Learning Outcome: 26.06.03 Describe one human and one plant disease caused by a basidiomycete
Section: 26.06

Question 50

The fruiting body of members of the Basidiomycota can produce millions of

A)gametes.
B)spores.
C)rhizoids.
D)zygotes.
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