GLYCOGENOGENESE Flashcards

1
Q

glycogenogenese est une voie

A

d anabolisme , sythese de glycogene a partir du glycose

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2
Q

la glycigenogenese se deroule

A

dans le cytoplasme des c hepatiques et musculaires

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3
Q

dans le foie PERIODE POST PRANDIAL

A

reserve d environ 1JOUR VCF

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4
Q

dans le muscle au repos

A

reserve pour ses propres besoins

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5
Q

reaction 1 irreversible exergonique

A

glucose ➔glucose 6P

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6
Q

enzyme de la 1e

A

hexokinase(foie) , glucokinase (muscle)

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7
Q

coenzyme de la 1e

A

ATP

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8
Q

cofacteur de la 1e

A

mg2+

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9
Q

REACTION 2 reversible

A

glucose6p ➔glucose 1p

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10
Q

enzyme de 2

A

phosphoglucomutase

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11
Q

cofacteur 2

A

mg2+

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12
Q

reaction 3 irrevresible exergonique

A

glucose 1P➔UDP-glucose

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13
Q

enzyme 3

A

glucose 1P uridyl transferase

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14
Q

reaction 4 irreversible

A

UDP glucose +glycogene(n) ➔glycogene(n+1)

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15
Q

enzyme de 4

A

glycogene synthase

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16
Q

reaction 4

A

.est une etape majeur de la regulation
. est une reaction qui permet de synthetiser des chaines linaires (alpha1➔4)

17
Q

reaction 5

A

mise en place des branchements (alpha1➔6)

18
Q

enzyme de 5

A

glycosyl(1,6) transferase

19
Q

bilan pour chaque molecule de glycose

A

on consomme 2ATP
1ATP ,1UTP