Fungi Part 2 Flashcards

(56 cards)

1
Q

Can fungi reproduce sexually and asexually spores?

A

Yes

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2
Q

What are the 2 ways that molds reproduce?

A

Asexual
Sporulation

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3
Q

What is the asexual reproduction for Molds?

A

Fragmentation of hyphae

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4
Q

What is the sporulation for molds?

A

Sexual or asexual spores
Depend on species
( fungal spores are not as resistant as bacterial endospores and reproductive structures )

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5
Q

Are fungal spores more resistant than bacterial Endospores?

A

No

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6
Q

How do asexual spores work?

A

Formed from one organism & can grow to become a be identical organism

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7
Q

How do sexual spores work?

A

Formed from the fusion of nuclei of 2 different types of strains from the same species of fungi

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8
Q

How are asexual spore formed on for molds?

A

Aerial hyphae

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9
Q

How are asexual spores produced?

A

Mitosis & cell division

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10
Q

Are asexual spores more common than sexual spores?

A

Yes

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11
Q

What are the 2 major asexual spores?

A

Conidiospores
Sporangiospores

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12
Q

What is conidiospores?

A

Spores not enclosed in a sac
( 4 different kinds are found in fungi )

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13
Q

What is sporangiospores?

A

Spores formed in a sporangium sac
( 1 kind of fungi )

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14
Q

What are the 4 conidiospores ( for molds & asexual spore formation )

A

Arthroconidia
Chlamydoconidia
Conidia
Blastoconidia

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15
Q

What is the advantage of asexual formation?

A

Fast & easy & survives alone

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16
Q

What is the disadvantage of asexual spores?

A

No variation

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17
Q

What is the 1 kind of fungi that’s sporangiospores? ( for molds & asexual reproduction )

A

Sporangiospores

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18
Q

What is arthroconidia?

A

Formed by fragmentation of septate hyphae into single cells

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19
Q

What is chlamydoconidia?

A

Thick walled spores formed by rounding & enlargement of hyphal segment
- candidia Albicans

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20
Q

What is conidia?

A

Unicellular or multicellular big enclosed in a sac
- produced in chains at the end of a condiophore
( aspergillus )

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21
Q

What is blastoconidia?

A

Consists of a bud coming off a parent cell
( cryptococuss )

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22
Q

What is spirangiospores?

A
  • only ones found in a sac
  • formed at the end of a sporangiosphore
    ( rhizopus )
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23
Q

Why are bacterial endospores not reproductive structures while fungal spores are reproductive structures?

A

Fungal spores - reproductive
Bacterial spores - resistant structures

Endospores
- only make 1 cell
- but not increasing amount of cells

Fungal spores
- making more than 1 cells ( increasing the number of offsprings )

24
Q

How does asexual spores help us?

A

Indentifying fungi

25
What is the 3 steps for sexual spores?
Plasmogamy Karyogamy Meiosis
26
What does plasmogamy do?
A haploid nucleus (+) penetrates Cytoplasms of a recipient (-)
27
What does karyogamy do?
The (+) and (-) fuse to form a diploid zygote nucleus
28
What meiosis do?
Diploid nucleus gives rise to haploid spores
29
How many different kinds of sexual spores (4)
Zygomycota Ascomycota Basidiomycota Microsporidia
30
Why is the main join for sexual spores?
To classify which spores goes into what family
31
What is zygomycota?
Produce zygomycota Coenicytic hyphae Saprophytic molds Rhizopus; black mold
32
What is ascomycota
Produce ascospores Produced in an ascus Septate hyphae Sac fungi
33
What is basidiomycota?
Produce basidiospores Septate hyphae Club fungi Mushrooms
34
What is Microsporidia?
Unusual, no mitochondria Obligate intracellular parasites Important in infections seems in aids patients
35
What is fungal diseases( another name)
Mycosis or mycotic diseases
36
What are fungal diseases usually are?
Usually chronic infections / diseases Usually grow slowly
37
What are the 5 fungal diseases?
Systemic Subcutaneous Cutaneous Superficial Opportunistic
38
What is systemic ? And how it works?
Found deep in the body ( Effect number of tissues and organs ) - inhalation of spores ( histoplasmosis & coccidiomycosis )
39
What is subcutaneous ? And how it works?
Beneath the skin ( direct implantation of spores )
40
What is cutaneous or dermetophytes? And how it works?
Infect epidermis, hair and nails - transmitted from human to human by direct contact ( contagious mycoses )
41
How do we get rid of cutaneous infections?
Antifungal drugs destroy the ergosterols in fungal cells
42
What are the 3 dermatomycosis? And what are they?
Microsporum - hair and skin Trichophyton - hair, skin and nails Epidermophytin - skin and nails
43
What are the most famous cutaneous fungal infection?
Ringworm and athletes foot
44
What causes ringworm or athlete foot?
Tinea
45
How do you treat tinea or ringworm?
Miconazole creams
46
What is superficial?
Found on hair shafts and superficial epidermis cells, tropical climates
47
What is opportunistic ?
Usually harmless in normal healthy people but are harmful for immunocompromised individuals
48
What is the famous opportunistic fungal ?
Candida albicans ( thrush ) (vulvovaginitis)
49
What is thrush and where is it found?
Candida albicans Found in mucous membranes ( mouth and genitalia )
50
How do you get thrush?
Simply through it overgrown in our bodies, we all have it but in small portions but sometimes it overgrown, and some ways it does is by -causes - antibiotics - immunosuppression - pregnancy
51
How does thrush look like?
White, itchy and painful lesions
52
Who gets thrush most often?
Babies (diaper rash) Aids patients
53
How do we treat thrush?
Antifungal topical applications of miconazole, clotrimazole & nystatin
54
What is PCP?
Pneumocysitis jirovecii pneumonia
55
Is PCP opportunitic?
Yes
56
How do we get PCP?
Well we are all exposed to it, and if we are healthy we don’t get it but some people aren’t, so we just inhale it - typically aids people get it