
Test de entrada 1 G1
Authored by Docente Aedo
Science
University
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
¿Qué es un enlace peptídico?
Es una reacción química en la que el grupo carboxilo de una molécula reacciona con el grupo amino de otra molécula.
2.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
El carbohidrato más abundante en la naturaleza es...
Sacarosa
Glucosa
Almidón
Celulosa
3.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Para reconocer la presencia de almidón en la muestra se debe:
Agregar los reactivos de Fehling A y B
Agregar unas gotas de Sudan III
Agregar unas gotas de Lugol
Añadir unas gotas de NaOH y luego el licor de Fehling A
4.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
¿De que átomos están hechos los lípidos?
Hidrógeno, carbono y nitrógeno
Hidrógeno, carbono y azufre
Oxígeno, nitrógeno y fósforo
5.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
¿Qué alternativa contiene un procedimiento experimental necesario para reconocer un glúcido reductor?
Agregar solución de Fehling A y B, luego calentar
Agregar lugol, calentar y observar el cambio de color
Agregar Sudan III y agitar la muestra
Agregar NaOH y calentar la muestra
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