Fungi Lectures

Descrição

Questions on the lecture material covered in the first 3 fungi lectures
Beth Moore
Quiz por Beth Moore, atualizado more than 1 year ago
Beth Moore
Criado por Beth Moore mais de 9 anos atrás
27
1

Resumo de Recurso

Questão 1

Questão
Which if the following best describes the ascus?
Responda
  • A sexual spore bearing cell produced in ascomycete fungi
  • A vegatitive body not differentiated into organs
  • A sexual spore bearing cell found in basidiomycete fungi
  • A transverse wall dividing hypha into sections

Questão 2

Questão
Which of the following groups have no known sexual stage?
Responda
  • Zygomycota
  • Deuteromycota
  • Basidiomycota
  • Ascomycota

Questão 3

Questão
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
Responda
  • a,b and c
  • a only
  • b only
  • b and d

Questão 4

Questão
What enzymes do fungi use to break down lignin?
Responda
  • Lignin oxidises and phenol peroxidases
  • Lignin peroxidases and phenol oxidases
  • Lignin peroxidases, phenol oxidises and laccases
  • Lignin oxidases, phenol peroxidases and laccases

Questão 5

Questão
What is the typical shape of ascomycetes fruiting body (ascocarp)?
Responda
  • Cup-shaped
  • Mushroom
  • ball shaped
  • Shelf shaped

Questão 6

Questão
After which stage of the lifecycle do the fungi nuclei become diploid?
Responda
  • During plasmogamy
  • During karyogamy
  • During mitosis
  • During meiosis

Questão 7

Questão
How is the dikaryotic mycelium maintained?
Responda
  • Using active transport
  • Through clamp connections
  • Through connexins
  • Through diffusion

Questão 8

Questão
Which of the following features is specific to the basidiomycetes?
Responda
  • Woronin body
  • Dolipore
  • Septal pore
  • Ascocarp

Questão 9

Questão
What maintains polarity in hyphae tips?
Responda
  • Microtubules
  • Actin filaments
  • Protein kinases
  • The nucleus

Questão 10

Questão
Which of these is a function of a fungal cell wall? Select the correct tickbox(es).
Responda
  • As a molecular sieve to regulate the passage of molecules
  • To prevent osmotic lysis
  • To allow enzymes such as invertase to bind
  • To protect cells from UV radiation

Questão 11

Questão
What does Glucan provide in the cell wall?
Responda
  • Rigidity
  • Flexibility
  • Energy storage
  • Insulation

Questão 12

Questão
How many ascospores are produced by the division of one ascus?
Responda
  • 2
  • 4
  • 8
  • 16

Questão 13

Questão
True or False? The hyphae that make up toadstools are dikaryotic.
Responda
  • True
  • False

Questão 14

Questão
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?
Responda
  • A=Peripheral/elongation zone B=Productive zone C=Aged zone D= Fruiting zone
  • A=Peripheral/elongation zone B= Fruiting zone C=Productive zone D=Aged zone
  • A=Productive zone B= Peripheral/elongation zone C= Fruiting zone D= Aged zone
  • A= Peripheral/elongation zone B= Productive zone C= Fruiting zone D= Aged zone

Questão 15

Questão
In which zone do aerial hyphae grow and septal pores become plugged?
Responda
  • Aged zone
  • productive zone
  • fruiting zone
  • peripheral/elongation zone

Questão 16

Questão
True or false? You are likely to find ruderal fungi in areas of dense, well developed forest.
Responda
  • True
  • False

Questão 17

Questão
Which of these is a secondary invader of Pine?
Responda
  • Leptographium lundbergii
  • Heterobasidium annosum
  • Peniophora gigantea
  • Trichoderma viride

Questão 18

Questão
Fungi can form mycorrizhal associations with plants. What beneficial nutrients may plants receive from this association?
Responda
  • Carbon
  • Nitrogen
  • Phosphorous
  • Oxygen
  • Sugars
  • Potassium

Questão 19

Questão
Where would you find a Hartig Net?
Responda
  • In between epidermal root cells of a plant invaded with ectomycorrhizal fungi
  • In the lumen of plant root cells invaded with endomycorrhizal fungi.

Questão 20

Questão
What are Arbuscules?
Responda
  • Specialised bundles of hyphae for nutrient absorption.
  • Spore producing structures in ascomycetes.
  • Part of the pre penetration apparatus used to invade a plant root.
  • A network of hyphae that grow in between root epidermal cells.

Questão 21

Questão
What is a biotrophic fungi?
Responda
  • A fungi that invades and kills tissues
  • A fungi that invades but does not kill tissues
  • A fungi that invades and forms a beneficial association with a plant.

Questão 22

Questão
Which of these structures are typical features of a biotrophic infection?
Responda
  • Appressorium
  • Haustorium
  • Flagellum
  • Dolipore
  • Infection peg

Questão 23

Questão
What do plants use to protect themselves from fungal infections?
Responda
  • Phytoalexins
  • PALDOXINS
  • Cutinase
  • Immunoglobins

Questão 24

Questão
Which of the following is spread by beetles?
Responda
  • Potato blight
  • Dutch Elm disease
  • Ash dieback
  • Wheat rust Ug99

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