Membrana plasmática
Quiz
•
Biology
•
University
•
Practice Problem
•
Hard
Marcela Blagitz
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual o componente mais abundante da membrana plasmática?
Ácidos nucleicos
Fosfolipídios
Monossacarídeos
Colesterol
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual propriedade dos fosfolipídios é essencial para a formação da bicamada?
Anfipatia
Solubilidade em água completa
Carga elétrica positiva
Rigidez estrutural
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O colesterol na membrana animal tem a função de:
Regular a fluidez da membrana
Sintetizar proteínas
Armazenar energia
Transportar oxigênio
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Proteínas que formam "canais" na membrana para passagem de substâncias são chamadas de:
Glicoproteínas
Proteínas integrais de canal
Enzimas
Proteínas periféricas
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O glicocálice é uma estrutura associada à membrana composta principalmente por:
Lipídios
Carboidratos
Ácidos nucleicos
Água
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Em temperaturas frias, plantas aumentam a proporção de fosfolipídios insaturados para:
Evitar a solidificação da membrana
Produzir mais ATP
Atrair água para a célula
Bloquear a entrada de oxigênio
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que aconteceria se a membrana perdesse sua fluidez?
A célula teria dificuldade em transportar substâncias e se comunicar
A fotossíntese seria mais eficiente
O DNA seria danificado
As proteínas deixariam de ser sintetizadas
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