
Membranes biologiques
Authored by Alexandre CEUGNIEZ
Biology
11th Grade
Used 1+ times

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8 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Quel est le rôle principal de la membrane plasmique?
Délimiter l'espace intracellulaire
Contrôler les réactions chimiques
Assurer la rigidité cellulaire
Transporter les nutriments
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Quelle est la conformation structurelle prise par les membranes biologiques
Micelles
Monocouche
Tricouche lipidiques
Bicouche lipidiques
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Quel type de protéine membranaire possède une partie hydrophobe enchâssée dans la bicouche lipidique et deux parties hydrophiles ?
Protéines transmembranaires
Protéines intramembranaires
Protéines extra-membranaires
Ancres GPI
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Quel est l'effet du cholestérol sur la fluidité membranaire?
Augmente la fluidité
Diminue la fluidité
Aucun effet
Stabilise la membrane
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Quel type de mouvement membranaire implique le passage d'un feuillet lipidique à l'autre?
Diffusion latérale
Flip-Flop
Diffusion des protéines
Rotation sur place
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Quel est le principal constituant des membranes cellulaires?
Protéines
Phospholipides
Cholestérol
Glycolipides
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Quel est le rôle des protéines transmembranaires dans la membrane biologique?
Réception de signaux
Transport de molécules
Enzymes
Fixation à la matrice extracellulaire
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