membrane plasmique Flashcards

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1
Q

phospholipides

A

structure de base de la membrane à double couche, permet le mouvement au niveau des phospolipides
couches: hydrophobe (queue couché graisseuse) et hydrophile (tête, contact avec l’eau)

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2
Q

glycolipides (rôle)

A

reconnaissance cell

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3
Q

cholestérol (role)

A

solidifier la membrane

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4
Q

protéines membranaires (rôles)

A

transport
activité enzymatique
reconnaissance cell

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5
Q

types de protéines membranaires

A

intégrales (dans la couche)

périphérique (sur les phospholipides, ext)

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6
Q

glucides membranaires 2 types

A

glucide attaché aux phospholipides = glycolipides

glucide attché aux protéines = glycoprotéines

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7
Q

Glycocalyx

A

couche visqueuse sur la membrane

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8
Q

jonctions sérrées

A

protéines intégrales qui font une jonction imperméable

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9
Q

desmosomes

A

empèche la séparation des tissus

ex: utérus

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10
Q

jonctions ouvertes

A

passage entre les cellules

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