L8 fungi Flashcards

(37 cards)

1
Q

What type of cell are fungi classified as?

A

Eukaryotic cell

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2
Q

What is the primary role of fungi in the ecosystem?

A

Decomposers that break down dead and decaying organic matter

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3
Q

What is mycotic/mycosis?

A

Relating to fungi

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4
Q

What are the two main types of reproduction in fungi?

A

Asexual and sexual reproduction

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5
Q

In asexual reproduction, daughter cells are _______ to the parent cell.

A

Genetically identical

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6
Q

What is the process by which haploid cells fuse to form a zygote in fungi?

A

Sexual reproduction

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7
Q

What are the two subcategories of fungi?

A
  • Yeast
  • Mould
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8
Q

Can all fungi be classified as parasites?

A

No, parasitic is an ecological role, not all fungi are parasites

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9
Q

What is a facultative parasite?

A

Able to live either free or as a parasite

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10
Q

What is an obligate parasite?

A

Must have a host to survive

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11
Q

What type of nutrition do saprophytes/saprobes utilize?

A

Absorbing nutrients from dead organic matter

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12
Q

What is the cell wall material of fungi?

A

Chitin

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13
Q

What structures do molds consist of?

A
  • Hyphae
  • Mycelium
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14
Q

What are conidiospores?

A

A type of spores borne externally on an aerial hypha called a conidiophore

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15
Q

True or False: Molds reproduce only sexually.

A

False

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16
Q

What is the purpose of the hyphae in molds?

A

Responsible for visible mass of growth and nutrient absorption
Reproductive hyphae responsible for production of spores

17
Q

What are the two types of spores produced by molds?

A
  • Conidia
  • Sporangiospores
18
Q

What is the function of rhizoids in fungi?

A

Anchor the fungus and absorb nutrients

19
Q

What does the term ‘saprobes’ refer to?

A

Organisms that feed by absorbing nutrients from dead organic matter

20
Q

What type of nutrition do fungi have?

A

Chemoheterotrophs

21
Q

What are the two main types of parasites?

A
  • Ectoparasites
  • Endoparasites
22
Q

What can mold toxins potentially cause?

A

Human diseases known as mycotic disease

23
Q

What are the main reproductive structures of fungi?

A
  • Spores
  • Fruiting bodies
24
Q

What is a conidium?

A

A type of asexual reproductive spore, borne on conidiophores

25
What are sporangium/sporangia?
Sac-like structures that release mature spores
26
What is the function of mycelium?
Transportation network to pass nutrients along the fungal body
27
What is the primary danger posed by mold spores?
They can spread easily in air circulation systems
28
What is the difference between sexual and asexual reproduction in yeast?
Sexual reproduction involves sporulation while asexual reproduction involves budding
29
What are the three types of fungal infections?
* Superficial infections * Intermediate infections * Systemic infections
30
What is a mycotic disease?
Infections caused by fungi
31
What is the role of vegetative hyphae?
Responsible for visible mass of growth and nutrient absorption
32
What are the two forms of reproduction in yeast?
* Asexual (budding) * Sexual (sporulation)
33
What do molds release into the environment?
Mature spores for germination and establishment of new colonies
34
What is the function of stolons in molds?
Release digestive enzymes and absorb digested organic material
35
What is the significance of fungal spores being small and light?
Enables easy dispersal and spread over a wide area
36
What type of fungi can form pseudo-hyphae?
Yeast
37
What are the two main types of spores in molds?
* Asexual spores (conidia) * Sexual spores (ascospores)