
Cuestionario de Bioelementos y Funciones
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12th Grade
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139 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
El bioelemento que interviene en la contracción muscular, irritabilidad nerviosa y de la estructura dentaria:
Flúor
Calcio
Potasio
Cobalto
Boro
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bioelemento importante para la biogénesis de proteínas y ácidos nucleicos:
Carbono
Oxígeno
Nitrógeno
Azufre
Potasio
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bioelemento que más abunda en los vertebrados, está presente en la sangre y su absorción es regulada por la vitamina D:
K
Mg
F
Ca
Cl
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se asocia a proteínas celulares, encontrándose en los aminoácidos cisteína y metionina.
Calcio
azufre
cobre
yodo
fósforo
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
El papel del agua en la termorregulación consiste principalmente en:
liberar agua de las proteínas
provocar ascenso de la temperatura
disminuir el peso corporal
reducir grasas y aumentar proteínas
absorber el calor
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
No corresponde a una función del agua:
Moderar los efectos de cambios de temperatura
Ser fuente de energía celular
Mantener la forma y tamaño de células y tejidos
Proporcionar flexibilidad y elasticidad a los tejidos
Ser agente dispersante de moléculas
7.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
En relación a la molécula de agua se puede afirmar lo siguiente:
Los puentes de hidrogeno explican la gran cohesión de sus moléculas.
Los elementos que la forman se unen por enlace covalente apolar
Presenta un bajo calor específico.
Presenta un alto calor de vaporización
La bipolaridad de la molécula de agua determina su función disolvente.
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