Semaine 6 Flashcards

1
Q

Role du noyau

A

Le noyau contient et protege le genome

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2
Q

Genome

A

ensemble de molecule d ‘ADN

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3
Q

Structure du noyau

A

Le noyau est delimite et protege par une double membrane qui forme l’enveloppe nucleaire

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4
Q

Structure de L’enveloppe nucleaire

A

elle est perforee de pores nucleaires

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5
Q

role des pores nucleaires

A

controle le passage de certaines macromolecules entre le noyau et cytoplasme

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6
Q

Les molecules d’adn SONT ils libres ou non

A

ne sont pas libres dans le noyau

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7
Q

Chaque molecule d’adn est enroule de quoi

A

chaque molecule d’adn est entroure de proteins nommes histones

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8
Q

Assemblage d’adn et histones se nomme

A

chromatine

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9
Q

Definition de la Chromatine

A

C’est la forme que prend l’adn dans le noyau la plupart du temps

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10
Q

Comment se forme les chromosomes

A

Pendant la divison cellulaire, la chromatine se condense pour former des chromosomes

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11
Q

Definition de nucleole

A

Region specialosee du noyau

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12
Q

Role de nucleole

A

Fabriquer les ribosomes

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13
Q

Que est ce que les ribosomes font apres avoir ete fabriquer

A

Les ribosomes quittent le noyau vers le cytopalsme par les pores nucleaires

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