Syntheses des acides gras Flashcards

1
Q

Lieu synthese des AG

A

Cytosol : Foie, Intestin, Tissu Adipeu

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2
Q

3 moyens de régulation de la synthèse des AG ?

A

_ Hormonal

_ Allostériques

_ Concentration en substrat

_ Etat energetique

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3
Q

Hormonal

A

_ Insuline active PP2A qui déphosphoryle et active l’enzyme

_ Glucagon/Adrénaline active PKA qui phosphoryle et désactive l’enzyme

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4
Q

Quel étape et quel enzyme est régulée ?

A

Acetyl Coa Carboxylase - étape d’activation

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5
Q

Etat énergétiques

A

_ AMP ( état énergétique faible ) active AMP Kinase qui va phosphoryle

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6
Q

Concentration en substrat

A

NADH,H et Acétyl-CoA

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7
Q

Allostérique

A

Citrate stimule Palmityl-CoA inhibe

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