
EVALUANDONOS
Authored by Susana Lopez
Science
11th Grade
Used 2+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Por qué se produce la oxidación?
debido al intercambio de moléculas
por bacterias
por reacciones enzimáticas
por oxidación
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Al agregar una sustancia a las frutas o verduras para retardar el oscurecimiento de la zona expuesta ¿a qué variable de la hipótesis pertenece?
independiente
dependiente
interviniente
N.A.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La variable independiente corresponde a
limón
fruta
cuchillo
agua
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La variable interviniente es
agua
fruta
limón
temperatura
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Completa: La oxidación ocurre por la presencia de las ............ que contienen: .............. ............. que una vez en contacto con el aire ocurre un proceso de transformación los fenoles a quinonas.
bacterias, microbios bichos
zonas oscuras, hongos
enzimas, polifenol oxidasa
vitaminas, hierro oxigenado
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La posible solución es la
conclusión
hipótesis
demostración
experimentación
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En el proceso de oxidación la fruta no pierde sus
propiedades
vitaminas
proteínas
carbohidratos
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