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1st Year Veterinary Cards - Semester 2 > Intro To Fungi > Flashcards

Intro To Fungi Flashcards

1
Q

What are fungi? What conditions do they grow in?

A

Mounds, mushrooms, yeasts, smuts and truffles

Damp places

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2
Q

How do fungi reproduced?

A

Sexually/asexually

Spores

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3
Q

What is mycology?

A

The study of fungi

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4
Q

What is mycosis?

A

A disease caused by fungi

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5
Q

What is mycetism?

A

Poisoning from toxic substances in mushrooms

Ingested

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6
Q

What are the main roles of fungi?

A

Symbionts
Parasites
Decomposers

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7
Q

Fungi can be pathogenic, and are saprophytic. What do these terms mean?

A

Disease causing

Obtain nutrients directly from dead organic matter

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8
Q

Do fungi photosynthesise? Why?

A

No

Lack chlorophyll

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9
Q

Why can’t fungi move?

A

Rigid cell wall made of chitin

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10
Q

Are fungi treatable by antibiotics?

A

No - resistant

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11
Q

What are the three morphological classifications of fungi?

A

Yeast
Mould
Dimorphic

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12
Q

What are yeast? Describe what the macro and micro colonies look like

A

Unicellular organisms
Macro colonies resemble bacteria
Micro colonies - oval/round shape - reproduce by budding

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13
Q

Yeast can form pseudohyphae in tissues. What are pseudohyphae?

A

Filaments that make up fungus - no cytoplasmic connection between cells

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14
Q

What is mould? What are the macro and micro colonies like?

A

A multicellular type of fungus
Macro colonies - velvet texture
Micro - hyphae with pores. Can be seperate or non seperate

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15
Q

What are the purpose of fungal spores?

A

Identification

Sexual/non sexual reproduction - mitosis or germination forms new mycelium

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16
Q

What are dimorphic fungi?

A

Fungi that grow in the form of yeast or mould depending on the conditions
Yeast at 37 degrees
Mould at 25 degrees

17
Q

Fungi produce biochemicals. What acid do they produce?

A

Citric acid

18
Q

Fungi are biodegraders, biochemicals, food source (quorn/mushroom/alcohol/bread) and make drugs. Which common drug is made by fungi?

A

Penicillin

19
Q

What are the 3 mechanisms in way fungi can cause disease?

A

Tissue invasion - mycosis. Invades organs
Toxin production - mycotoxicosis - immunosuppressive, tetragenic (embryo) carcinogenic
Induction of hypersensitivity - airway obstruction and allergies

20
Q

What are dermatophytes?

A

Fungi which cause skin diseases

21
Q

What are the 3 types of dermatophytes?

A

Geophilic - soil associated
Zoophilic - animal associated
Anthropophilic - human associated

1st Year Veterinary Cards - Semester 2 (63 decks)

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