
Semana 5
Quiz
•
Health Sciences
•
University
•
Easy
Sunmy Medina
Used 1+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es el principal componente estructural de las membranas biológicas?
ADN
Bicapa lipídica
Glucógeno
Ribosomas
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué molécula cruza más fácilmente una bicapa lipídica sin ayuda de proteínas?
Glucosa
CO₂
Na⁺
ARN
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Las porinas son proteínas que forman:
Hélices α transmembranales
β-Barriles
Filamentos de actina
Microtúbulos
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué tipo de lípido es más abundante en la capa externa de la membrana plasmática?
Fosfatidilserina (PS)
Fosfatidilcolina (PC)
Colesterol
Triglicéridos
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es la función principal de las flipasas como ATP8B1?
Transportar glucosa al interior celular
Mover fosfatidilserina (PS) a la capa interna de la membrana
Sintetizar ATP en mitocondrias
Degradar lípidos
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué característica diferencia a un canal iónico de una bomba de iones?
Los canales usan ATP, las bombas no
Las bombas generan gradientes, los canales los disipan
Los canales solo transportan agua
Las bombas son siempre pasivas
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La asimetría de lípidos en la membrana es importante para:
La fotosíntesis
La señalización celular y apoptosis
La replicación del ADN
La síntesis de proteínas
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