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Mave tarm. > Biokemi 21 > Flashcards

Biokemi 21 Flashcards

1
Q

Enzymer

A

Insulin –> Fodret
Glukagon –> Faste
Adrenalin –> stress (eksempelvis fed lavt blodsukker)
Kortisol –> kronisk stress (længere faste, traumer)

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2
Q

Fodret tilstand

A

Post prandiel tilstand

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3
Q

Glykogensyntasen

A

Aktiveres af insulin

Aktiveres allosterisk af glukose-6-fosfat

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4
Q

Glykogenfosforylasen

A

Inaktiveres af insulin
Inaktiveres allosterisk af glukose-6-fosfat.
Hæmmes også allosterisk af glukose i leveren.

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5
Q

F-2,6-BP

A

Aktiverer PFK-1.
Ophæver ATP’s virkning på PFK-1.

Hæmmer FBPasen

Dannes når insulin stimulerer defosforylerung af PFK-2/FBPase-2 komplekset, hvorved PFK-2 aktiveres og FBPase-2 inaktiveres. Herved omdannes fruktose-6-fosfat til fruktose-2,6-bifosfat.

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6
Q

Feed-forward i glykolysen

A

Fuktose-1,6-bifosfat stimulerer pyruvatkinasen allosterisk.

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7
Q

Malonyl-CoA hæmmer

A

Beta-oxidation af fedtstoffer, ved at lukke for carnitittransportmekanismen

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