lipides Flashcards

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1
Q

caractéristiques des lipides (2)

A

grosse molécule (macromolécule)

insolubles

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2
Q

triglycérides (graisse neutre)

A

glycérol et acides gras

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3
Q

rôles de triglycérides

A

stockage d’énergie

isolation

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4
Q

phospholipides

A

principal constituant de la membrane plasmique

tête hydrophile (groupement de phosphate + glycérol) et queue hydrophobe ( 2 chaines d’acide gras)

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5
Q

stéroïdes

A
4 cycles chimiques
hormones sexuelles (testo, oestro, progestérone +++)
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