
COLIFORMES TOTALES
Authored by Luis Calva Calva
Biology, Chemistry, Science
1st - 5th Grade
Used 7+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Indique la Norma de referencia para la determinación de coliformes totales en alimentos por vaciado en placa.
NOM-092-SSA1-1994
NOM-110-SSA1-1994
NOM-113-SSA1-1994
NOM-111-SSA1-1994
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mencione el medio empleado, así como las condiciones de tiempo y temperatura que requiere la técnica.
VB al 2%/ 48± 2h/ 44.5 ± 0.2°C
RVBA / 48± 2h/ 35 ± 1°C
RVBA/ 24± 2h/ 35 ± 1°C
RVBA/ 24± 2h/ 44.5 ± 0.2°C
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cuál es el rango de Conteo de los coliformes totales por placa
10 a 150
15 a 150
25 a 250
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mencione los controles microbiológicos implementados durante el proceso
(+) E. coli / (-) Medio RVBA
Superficies vivas e inertes
Monitoreo ambiental y medios de cultivo
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Indique al menos dos enfermedades producidas por bacterias pertenecientes al grupo de coliformes totales
Rinopatias
Trastornos del tracto genitourinario
Dermatitis aguda
Síndromes gastrointestinales
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cual es el tiempo que deberá trascurrir entre la adición de la muestra y el vertido del agar
No más de 5 minutos
No más de 20 minutos
No más de 10 minutos
Indistinto
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cual es el propósito de verter una segunda capa de agar RVBA
Ampliar la superficie de contacto
Mejorar las condiciones de vertido
Generar condiciones de anaerobiosis
gelificar de manera uniforme al agar
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