Examen del grupo 3154 Practicas 10, 11, 12 y 13
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Science
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University
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Helena Tejeda
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Para que sirven los amortiguadores (Buffers) salivales?
Evitan los cambios extremos del pH
Cambian el pH de la saliva
Acidifican la saliva
Inhiben el crecimiento de las bacterias
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Cuántos ml de saliva se secretan por día?
De 1200 a 2000 ml
De 700 a 800 ml
De 50 a 100ml
De 500 a 450 ml
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿ Cuantas bacterias tiene n ml de saliva ?
Aproximadamente 5,000 millones
Aproximadamente 4,000 millones
Aproximadamente 6,000 millones
Aproximadamente 7,000 millones
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Cómo se cuantifican el número de bacterias de 1ml?
Se hace un frotis
Se siembra directamente 1ml de saliva
Se tiñen con tinción de Gram
Se hacen diluciones decimales antes de la siembra.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿ Qué factores estableció Paul Keyes para la caries dental?
Huésped, hospedero y sustrato
Microorganismos Gram positivos
Microorganismos Gram negativos
Streptococcus viridans
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿ La glucosa y la fructuosa, la utilizan los microorganismos para formar?
Forman glucolípidos
Forman glucanos y fructanos
Forman glucosa
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿ Que es un agente bactericida?
Mantiene el crecimiento de las bacterias
Sirve para crecimiento de las bacterias
Mata a las bacterias
sirve para teñirse
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