biosynthèse des acides gras Flashcards

1
Q

origine des agras

A

apports alimentaires

synthèse endogène : foie, t adipeux et gde mammaire

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2
Q

la bios des AG NÉCESSITE

A

ATP
pouvoir red NADPH
précurseur acétyl coA

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3
Q

source acétyl coA

A

ox pyruvate glycolyse
dégradation oxydative des AA cétogènes
alcool

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4
Q

NADPH provient

A

pentose phosphate

navette citrates

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5
Q

trois mecanismes de synthèses de ag de l’acétyl coa

A

S cytosolique
élongation mitochondriald
élongation et desaturation microsomale

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6
Q

synthèse de palmitate nécessite

A

8 acétyl coa
14 nadph
7atp

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7
Q

enzyme clé

A

acétyl coa carboxylase

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