Celična membrana Flashcards

1
Q

Kaj gradi membrano

A

proteini, lipidi, oglikovi hidrati (glikoproteini) (8-10%)

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2
Q

Kako delimo lipide v membranah?

A

Delimo jih na glicerofosfolipide, sfingolipide in holesterol.

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3
Q

Naštej glicerofosfolipide (fosfogliceride), ki gradijo membrano.

A

▪ fosfatidilholin
▪ fosfatidiletanolamin
▪ fosfatilserin
▪ fosfatidilinozitol

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4
Q

Naštej sfingolipide ki gradijo membrano.

A

▪ ceramidi
▪ sfingomielini
▪ glikosfingolipidi

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5
Q

Katere strukture se lahko v glicerofosfolipidih držijo fosfata (PO4-)? Kako se imenuje fosfoglicerid?

A

holin-> fosfatidilholin
serin->fosfatidilserin
etanolamin->fosfatidiletanolamin
inozitol->fosfatidilinozitol

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6
Q

Kako ločimo membranske proteine glede na stopnjo vsidranosti?

A

Na periferne proteine (s šibkimi vezmi so vezani na integralne proteine ali lipide) in integralne proteine (vgrajeni v dvosloj ali lipidno sidrani). Integralni proteini o lahko vsidrani v eno plast dvosloja (E/P), lahko prehajajo skozi membrano enkrat ali večkrat.

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