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Principles of Disease > Introduction to Fungi > Flashcards

Introduction to Fungi Flashcards

1
Q

Uses of Fungi (7)

A 
Antibiotics
Medicinal drugs
Organic acids
Enzymes
Foods
Alcohol
Agriculture
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2
Q

Oppurtunistic Systemic Mycoses

A

Candida albicans
Cryptococcus neoformans
Aspergillus fumigates
Superficial mycoses

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3
Q

Fungus

A

Chemo-organotrophic eukaryote

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4
Q

Features of fungus

A

lacks chlorophyll
Forms spores
Cell wall contains polysaccharides (chitins or glucans)
Membrane contains ergosterol

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5
Q

Sexual spore of Basidomycetes

A

Basiospore

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6
Q

Asexual Basidomycetes

A

Conidium

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7
Q

Examples of Basidomycetes

A

Mushrooms
Crytococcus
Malassezia

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8
Q

Sexual spore of Ascomycetes

A

Ascospore

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9
Q

Asexual spore of Ascomycetes

A

Conidium

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10
Q

Examples of Ascomycetes

A

Candida
Aspergillus
Neurospora

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11
Q

Sexual spore of Zygomycetes

A

Zygospore

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12
Q

Asexual spore of Zygomycetes

A

Sporangiospore

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13
Q

Examples of Zygomycetes

A

Mucor
Rhizopus
Bread moulds

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14
Q

Characteristic of yeast

A

Unicellular

Reproduce by budding

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15
Q

How does years reproduce

A

Budding

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16
Q

Dermatophytes

A

Release enzymes that degrade and utilise keratin as a nutrient source

17
Q

Causative agents that are Dermatophytes

A

Epidermophyton, Microsporum, Trichophyton

18
Q

Host factors that contribute to pathogenicity

A

Warm, moist environments
Antibacterial agents
Imunosupressed individuals

19
Q

Candida infections

A

are yeasts but can form hyphae (pleomorphism)

20
Q

Aspergillosis infection

A

Ubiquitous infection
Invades blood cells and sporulates
Causes fungal ball

21
Q

Cryptococcus infections

A

AIDS patients

Pulmonary

22
Q

Hyperimmune response-

A

candida vaginitis

23
Q

Hypoimmune response

A

aspergilliosis

24
Q

Diagnostic Methods

A 
Skin scales - KOH
Smear and stain with PAS
Vaginal smear- calcofluor white
Growth on selective media
Heat to 37C in serum
CT scans
PCR
Culture from sterile site
25
Q

Treatment

A

Polyenes
Azoles
Echinocandins
Fluctocytosine

Principles of Disease (32 decks)

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