Membrana Celular - Modelo do Mosaico Fluido

Quiz
•
Science
•
10th Grade
•
Hard

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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 20 pts
A membrana celular é constituída por _________ que foram uma bicamada, atravessada por _____________.
2.
MULTIPLE CHOICE QUESTION
45 sec • 20 pts
Em 1972, _______________ apresentam o modelo de mosaico fluido para representar a constituição da membrana plasmática. O nome deriva do facto de ___________ que há mobilidade dos fosfolípidos e das proteínas que entram na sua constituição.
3.
MULTIPLE CHOICE QUESTION
45 sec • 20 pts
Segundo o modelo de mosaico fluido, a membrana plasmática apresenta…
4.
MULTIPLE CHOICE QUESTION
45 sec • 20 pts
Os fosfolípidos que constituem a membrana plasmática apresentam as extremidades polares ______, voltadas para ______ e as cadeias apolares voltadas umas para as outras.
5.
MULTIPLE CHOICE QUESTION
45 sec • 20 pts
Existem hidratos de carbono na superfície ______ da membrana, ligados a proteínas, formando ______.
6.
MULTIPLE CHOICE QUESTION
45 sec • 20 pts
As bactérias hipertermófilas que vivem nas fontes hidrotermais apresentam alterações na membrana celular, traduzidas no aumento do tamanho das caudas dos ácidos gordos para manter a estabilidade. Assim, pode-se afirmar que estas alterações ocorrem ______.
7.
MULTIPLE CHOICE QUESTION
45 sec • 20 pts
O modelo de mosaico fluido da membrana celular admite que as moléculas lipídicas ______ mobilidade lateral, dotando a bicamada de grande ______.
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