Transportes transmembranares
Flashcard
•
Biology
•
10th Grade
•
Hard
Ana Duarte
FREE Resource
Student preview

7 questions
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1.
FLASHCARD QUESTION
Front
A diferença de concentração de solutos entre dois meios designa-se
Back
Gradiente de concentração
2.
FLASHCARD QUESTION
Front
Quando dois meios, separados por uma membrana semipermeável, apresentam concentração diferente
Back
as substâncias deslocam-se para o meio onde estão a menor concentração.
3.
FLASHCARD QUESTION
Front
A osmose pode ser definida como
Back
o transporte de moléculas de água dos meios de menor concentração de soluto para os meios de maior concentração de soluto.
4.
FLASHCARD QUESTION
Front
Quando as células animais são colocadas em meios de elevada concentração de soluto
Back
ficam plasmolisadas, diminuindo de volume.
5.
FLASHCARD QUESTION
Front
Como as moléculas de água atravessam as membranas?
Back
Pela bicamada fosfolipídica, a menor velocidade do que por aquaporinas.
6.
FLASHCARD QUESTION
Front
Por que as proteínas não atravessam as membranas plasmáticas?
Back
são macromoléculas.
7.
FLASHCARD QUESTION
Front
Quando uma célula vegetal é colocada num meio hipotónico
Back
o vacúolo aumenta de volume.
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