Biology (Raven), 10th Edition

Chapter 32: Fungi

Post-Test

1
What do some endophytic fungi produce that is protective of their host plants?
A)alkaloids
B)celluloids
C)ketoids
D)saccharides
E)histones
2
Select a feature of zygomycetes.
A)perforated septa
B)are monokaryotic
C)do not form zygotes
D)lack septa except when they form sporangia or gametangia
E)have solid septa
3
What about mitosis in multicellular fungi is distinctly unique?
A)Mitosis is followed by cell division of several fused cells simultaneously.
B)Chromosomes are relocated without the aid of a mitotic spindle.
C)The number of centrioles equals the number of sister chromatids.
D)The nuclear envelope breaks down and reforms several times during mitosis.
E)The spindle apparatus forms within the nuclear membrane to separate chromosomes.
4
Where does a fungus perform digestion of its food?
A)within septa
B)externally though secretion of enzymes
C)in mycelia
D)in hyphae
E)Each of the selections is demonstrated by various fungi.
5
What line of research is shedding light on whether current groupings are monophyletic or not?
A)closer investigation of sexual reproduction strategies
B)fossils and protein sequence data
C)protein sequence data
D)new microscopic studies of fossils
E)molecular sequence data
6
The life cycle of Allomyces has both multicellular diploid and haploid stages. What is this type of life cycle called?
A)diplohaploidic
B)alternation of generations
C)gametophyte / sporophyte switching
D)haplontic
E)diplontic
7
In the life cycle of zygomycetes, where might you find diploid cells?
A)within the zygosporangium
B)in the sporangiophore
C)in the mycelium near rapidly-growing regions
D)next to the food substrate
E)Most of the cells in zygomycetes are diploid.
8
An arbuscular mycorrhizal association is characterized by what?
A)secretion of digestive enzymes into the soil
B)growth on the surface of another organism in a commensal form of symbiosis
C)use of another organism for distribution of spores
D)formation of intracellular associations with plant roots
E)fusion of plasma membranes with another organism for nutrient exchange
9
In basidiomycetes, what is the difference between the primary mycelium and the secondary mycelium?
A)The primary mycelium is made of monokaryotic hyphae, while the secondary consists of a dikaryotic mycelium.
B)The secondary mycelium is made of monokaryotic hyphae, while the primary consists of a dikaryotic mycelium.
C)There is lignification of cell walls in a secondary but not a primary mycelium.
D)The mycelium is called "primary" if it's in its first year of growth and "secondary" any time after the first year.
E)Cells that give rise to spores are called "secondary", and vegetative cells of a mycelium are called "primary".
10
Ascomycetes are often the fungal partners with what other organism(s)?
A)plants
B)cyanobacteria
C)algae
D)both cyanobacteria and algae
E)All of the selections are correct.
11
What is the proper name for an emerging infectious disease that affects the skin of amphibians and leaves flask-like lesions?
A)basidiomycosis
B)ascomycosis
C)aflatoxosis
D)Candida infection
E)chytridiomycosis
12
Between cells of some hyphae, typically those comprised of long chains of cells joined end-to-end, are incomplete walls that allow cytoplasmic continuity between them and rapid growth. What is their name?
A)pores
B)plasmodesmata
C)septa
D)rhizoids
E)mycelia
13
How was it demonstrated that glomeromycetes are a monophyletic clade that is phylogenetically distinct from zygomycetes?
A)mode of reproduction
B)type of symbiotic relationship
C)comparisons of DNA sequences of small-subunit rRNAs
D)presence of spores
E)None of the selections are correct.
14
In the zygomycetes, when are complete walls (septa) formed in their hyphae?
A)during the diploid phase
B)just after mitosis
C)at the conclusion of meiosis
D)in the sporangiophore supporting the sporangium
E)during the formation of gametangia or sporangia
15
True or false: Glomeromycetes must be associated with the root system of a host plant in order to survive.
A)true
B)false
16
Select the kind of fungi that does not belong to the phylum Ascomycota.
A)bread yeasts
B)death cap mushrooms
C)common molds
D)morels
17
Which fungi live within the rumens of mammalian herbivores and enzymatically digest cellulose and lignin?
A)blastocladiomycetes
B)chytridiomycetes
C)neocallimastigomycetes
D)microsporidia
18
True or false: Some fungi can break down jet fuel.
A)true
B)false
19
Which statement concerning fungal spores is NOT correct?
A)Spores are the most common means of reproduction among fungi.
B)Spores can form through sexual processes.
C)Spores can form through asexual processes.
D)Spores are dispersed by the wind, insects and small animals.
E)All of the selections are correct statements.
20
The difference between pathogens and parasites is that ________cause disease and _________ rarely do so.
A)parasites; pathogens
B)both; pathogens
C)pathogens; parasites
D)both; both
21
Which statement is NOT correct concerning mycorrhizae?
A)Mycorrhizae are fungi associated with roots of plants; there are three principal types.
B)In ectomycorrhizae, the hyphae surround but do not penetrate root cell walls.
C)In arbuscular mycorrhizae, the hyphae penetrate the root cell walls of plants but not the membranes.
D)Arbuscular mycorrhizae imvolve about 70 - 80% of all plant species,
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