Tableau 1 Flashcards

1
Q

Enzymes du métabolisme glycogène

A

Glycogène synthase et glycogène phosphorylase

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2
Q

Facteurs influencant la glycogène synthase

A
Augmentation = insuline (MC)
Diminution = Glucagon et adrénaline (MC)
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3
Q

Facteurs influencant la glycogène phosphorylase

A
Augmentation = glucagon et adrénaline (MC)
Diminution = insuline (MC)
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4
Q

Enzymes de la glycolyse

A

Glucokinase
Phosphofructokinase
Pyruvate kinase

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5
Q

Facteurs influencant la glucokinase

A
Augmentation = insuline (IND)
Diminution = Glucagon (REP)
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6
Q

Facteurs influencant la phosphofructokinase

A
Augmentation = Insuline (IND) et AMP (ALL)
Diminution = Citrate (ALL), ATP (ALL), glucagon (REP)
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7
Q

Facteurs influencant la pyruvate kinase

A
Augmentation = insuline (IND)
Diminution = Glucagon (REP)
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8
Q

Enzymes de l’oxydation de la pyruvate en acétyl-CoA

A

Pyruvate déshydrogénase

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9
Q

Facteurs influencant la pyruvate déshydrogénase

A
Augmentation = Insuline, NAD+, CoA-SH, ADP
Diminution = NADH, acétyl-CoA, ATP
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10
Q

Enzymes de la néoglucogénèse

A

Pyruvate carboxylase
Fructose-1,6-biphosphatase
Glucose-6-phosphatase

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11
Q

Facteurs influencant la pyruvate carboxylase

A
Augmentation = Glucagon (IND), adrénaline, Acétyl-CoA
Diminution = Insuline (REP)
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12
Q

Facteurs influencant la fructose-1,6-biphosphatase

A
Augmentation = Glucagon (IND), adrénaline, glucocorticoïdes
Diminution = Insuline (REP)

*Même que G-6-phosphatase

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13
Q

Facteurs influencant la glucose-6-phosphatase

A
Augmentation = Glucagon (IND), adrénaline, glucocorticoïdes
Diminution = Insuline (REP)

*Même que F-1,6-biphosphatase

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14
Q

Enyzmes de la voie de pentoses

A

Glucose-6-phosphate déshydrogénase

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15
Q

Facteurs influencant la glucose-6-phosphate déshydrogénase

A

Augmentation = Insuline (IND)

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16
Q

Enzymes de la lipogenèse et cholestérogenèse

A

Acétyl-CoA carboxylase
Acide gras synthase
HMG-CoA réductase

17
Q

Facteurs influencant la Acétyl-CoA carboxylase

A
Augmentation = Insuline, citrate
Diminution = Acyl-CoA, glucagon
18
Q

Facteurs influencant l’acide gras synthase

A

Augmentation = Insuline

19
Q

Facteurs influencant la HMG-CoA réductase

A
Augmentation = Insuline
Diminution = Glucagon, cholestérol (REP & ALL), mévalonate
20
Q

Types d’augmentation de l’Activité

A
Induction = augmentation synthèse (IND)
Effet allostérique positif (ALL)
Modification covalente (MC)
21
Q

Types de diminution de l’activité

A
Répression= diminution synthèse (REP)
Effet allostérique négatif (ALL)
Modification covalente (MC)