1812921
Descripción
Test por Beth Moore, actualizado hace más de 1 año
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Creado por Beth Moore
hace más de 9 años
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Pregunta 1
Pregunta
Which if the following best describes the ascus?
Respuesta
-
A sexual spore bearing cell produced in ascomycete fungi
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A vegatitive body not differentiated into organs
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A sexual spore bearing cell found in basidiomycete fungi
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A transverse wall dividing hypha into sections
Pregunta 2
Pregunta
Which of the following groups have no known sexual stage?
Respuesta
-
Zygomycota
-
Deuteromycota
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Basidiomycota
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Ascomycota
Pregunta 3
Pregunta
Which of the following can fully break down lignin?
a) soft rot fungi
b) white rot fungi
c) hard rot fungi
d) heart rot fungi
Respuesta
-
a,b and c
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a only
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b only
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b and d
Pregunta 4
Pregunta
What enzymes do fungi use to break down lignin?
Respuesta
-
Lignin oxidises and phenol peroxidases
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Lignin peroxidases and phenol oxidases
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Lignin peroxidases, phenol oxidises and laccases
-
Lignin oxidases, phenol peroxidases and laccases
Pregunta 5
Pregunta
What is the typical shape of ascomycetes fruiting body (ascocarp)?
Respuesta
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Cup-shaped
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Mushroom
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ball shaped
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Shelf shaped
Pregunta 6
Pregunta
After which stage of the lifecycle do the fungi nuclei become diploid?
Respuesta
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During plasmogamy
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During karyogamy
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During mitosis
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During meiosis
Pregunta 7
Pregunta
How is the dikaryotic mycelium maintained?
Respuesta
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Using active transport
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Through clamp connections
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Through connexins
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Through diffusion
Pregunta 8
Pregunta
Which of the following features is specific to the basidiomycetes?
Respuesta
-
Woronin body
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Dolipore
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Septal pore
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Ascocarp
Pregunta 9
Pregunta
What maintains polarity in hyphae tips?
Respuesta
-
Microtubules
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Actin filaments
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Protein kinases
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The nucleus
Pregunta 10
Pregunta
Which of these is a function of a fungal cell wall? Select the correct tickbox(es).
Respuesta
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As a molecular sieve to regulate the passage of molecules
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To prevent osmotic lysis
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To allow enzymes such as invertase to bind
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To protect cells from UV radiation
Pregunta 11
Pregunta
What does Glucan provide in the cell wall?
Respuesta
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Rigidity
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Flexibility
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Energy storage
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Insulation
Pregunta 12
Pregunta
How many ascospores are produced by the division of one ascus?
Respuesta
-
2
-
4
-
8
-
16
Pregunta 13
Pregunta
True or False? The hyphae that make up toadstools are dikaryotic.
Respuesta
- True
- False
Pregunta 14
Pregunta
An agar plate has been innoculated with fungal spore. A diagram has been labelled with 4 distinctive zones. What are the correct names for the areas labelled A, B, C and D?
Respuesta
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A=Peripheral/elongation zone B=Productive zone C=Aged zone D= Fruiting zone
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A=Peripheral/elongation zone B= Fruiting zone C=Productive zone D=Aged zone
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A=Productive zone B= Peripheral/elongation zone C= Fruiting zone D= Aged zone
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A= Peripheral/elongation zone B= Productive zone C= Fruiting zone D= Aged zone
Pregunta 15
Pregunta
In which zone do aerial hyphae grow and septal pores become plugged?
Respuesta
-
Aged zone
-
productive zone
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fruiting zone
-
peripheral/elongation zone
Pregunta 16
Pregunta
True or false? You are likely to find ruderal fungi in areas of dense, well developed forest.
Respuesta
- True
- False
Pregunta 17
Pregunta
Which of these is a secondary invader of Pine?
Respuesta
-
Leptographium lundbergii
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Heterobasidium annosum
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Peniophora gigantea
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Trichoderma viride
Pregunta 18
Pregunta
Fungi can form mycorrizhal associations with plants. What beneficial nutrients may plants receive from this association?
Respuesta
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Carbon
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Nitrogen
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Phosphorous
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Oxygen
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Sugars
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Potassium
Pregunta 19
Pregunta
Where would you find a Hartig Net?
Respuesta
-
In between epidermal root cells of a plant invaded with ectomycorrhizal fungi
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In the lumen of plant root cells invaded with endomycorrhizal fungi.
Pregunta 20
Pregunta
What are Arbuscules?
Respuesta
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Specialised bundles of hyphae for nutrient absorption.
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Spore producing structures in ascomycetes.
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Part of the pre penetration apparatus used to invade a plant root.
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A network of hyphae that grow in between root epidermal cells.
Pregunta 21
Pregunta
What is a biotrophic fungi?
Respuesta
-
A fungi that invades and kills tissues
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A fungi that invades but does not kill tissues
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A fungi that invades and forms a beneficial association with a plant.
Pregunta 22
Pregunta
Which of these structures are typical features of a biotrophic infection?
Respuesta
-
Appressorium
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Haustorium
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Flagellum
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Dolipore
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Infection peg
Pregunta 23
Pregunta
What do plants use to protect themselves from fungal infections?
Respuesta
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Phytoalexins
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PALDOXINS
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Cutinase
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Immunoglobins
Pregunta 24
Pregunta
Which of the following is spread by beetles?
Respuesta
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Potato blight
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Dutch Elm disease
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Ash dieback
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Wheat rust Ug99
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