SOl Flashcards

1
Q

Transmitere om-sol-om:

A
  • Febra tifoida
  • Paratifoida
  • Hepatita A
  • Dizenterie
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2
Q

Transmitere animal-sol-om:

A
  • Clostridii
  • Leptospire
  • Pasteurella
  • febra Q
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3
Q

Transmitere sol-om:

A
  • ciuperci saprofite (micoze –
    aspergiloza, mucomicoza), helminţi
    (biohelminţi: Taenia solium, saginata, canis;
    geohelminţi: ascaridioza, strongiloidoza,
    tricocefaloza, anchilostomiaza - parazitoza
    minerilor).
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4
Q

Cum face analiza solului?

A

Din suspensia de sol se realizeaza dilutii zecimale
(1/10, 1/100, 1/1000 … 1/100.000) si se
insamanteaza cate 1 ml pe mediu cu geloza simpla;
l Se incubeaza la 37°C pt mezofili, 24 ore
60°C pt termofili, 24 ore

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5
Q

Cum se nr. coloniile formate?

A

nr de colonii x inversul dilutiei/ nr. de placi insamantare x suprafata

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6
Q
Determinarea
colli fecali (Escherichia colii) – indica
A

O contaminare recenta

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7
Q

Streptococi fecali indica:

A

Contaminare relativ recenta

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8
Q

O contaminare veche este indicata de prezenta:

A

Germenilor sulfidoreducatori: Clostridii

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9
Q

Metoda ,,Capcanelor cu fire de par” se utilizeaza pentru:

A

Determinarea fungilor geofili
Din probele de sol se ia cu o spatula sterila o cant.de sol si se introduce in placi
Petri, peste apa distilata; se formeaza o pelicula deasupra pe care se aseaza
fragmente din fire de par. Se incubeaza la 37°C, apoi se urmareste macroscopic
decolorarea firelor insamantate. De asemenea, acestea devin casabile, daca se
aseaza firul intre lama si lamela à infestate cu fungi din sol

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10
Q

Un sol poluat are intre .. oua de geohelminti pe gram de sol:

A

10-100

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11
Q

Un sol poluat are nr. de germeni pe gram de sol:

A

10.000

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