
repaso ciencias 1° II
Authored by Gleny Arriagada
Science
7th - 8th Grade
Used 5+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué elementos químicos se encuentran principalmente en los seres vivos?
A) Silicio y oxígeno.
B) Hidrógeno y helio.
C) Oxígeno y carbono.
D) Carbono y aluminio.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cuando aumenta la temperatura de un objeto es posible que:
I. Este se dilate.
II. Este disminuya su masa.
III. Este aumente su volumen.
A) Sólo I
B) Sólo II
C) I y III
D) I, II y III
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál de los siguientes enunciados NO forma parte de la teoría celular?
A) La célula es la unidad de estructura de los
organismos vivientes.
B) La célula es la unidad funcional de los seres
vivos.
C) Toda célula deriva de otra célula.
D) La célula puede tener uno o dos nucléolos.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La presencia de un núcleo organizado dentro de la membrana nuclear es característica de:
A) Células eucariontes.
B) Unicelulares
C) Células procariontes
D) Bacterias
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Las células animales y vegetales son semejantes, ya que ambas poseen:
A) membrana celular.
B) clorofila.
C) cloroplastos
D) pared celular
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Observa la tabla y responde la siguiente pregunta.
¿Cuántas proteínas consume una persona que ingiere los tres alimentos?
A) 21
B) 25
C) 50
D) 98
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La mayor absorción de agua en el tracto digestivo se produce en:
A) el estómago.
B) el intestino grueso.
C) el intestino delgado.
D) el páncreas.
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