Fysiologi - Cellelære Flashcards

1
Q

Subatomarepartikler består af

A

Protoner, neutroner og elektroner

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2
Q

I cellekernen ligger vores…

A

DNA

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3
Q

Cellen består af 4 dele

A

Cellemembran, Cellekerne, Cytoplasma or Organeller

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4
Q

Lysosomer er en slags

A

“Selvmordspakker”

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5
Q

Cellemembranen er opbygget af…

A

Et fedtlag med indlejrede proteiner

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6
Q

De 2 typer specialiserede transportproteiner er..

A

Kanaler og “Carrier”-proteiner

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7
Q

“Kanaler” virker via mekanismen

A

Diffusion

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8
Q

Åbning og lukning af kanaler sker via

A

Spændning (elektrisk ladning), eller budbringermolekyler

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9
Q

Der findes 4 hovedtyper af celler

A

Muskelceller, bindevævsceller, nerveceller, epitelceller

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10
Q

Celler danner 4 typer af væv

A

Muskelvæv, bindevæv, nervevæv og epitelvæv

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11
Q

Intracellulærvæske kaldes også

A

Cytoplasma

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12
Q

De 2 former for transport af de forskellige stoffer

over cellemembranen?

A

– Passiv transport (diffusion), intet energiforbrug

– Aktiv transport, energikrævende

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13
Q

Forskel i stofkoncentration på hver side af en cellemembran udlignes med?

A

Diffusion

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14
Q

Ikke fedtopløselige stoffer kan passere

gennem cellemembranen via?

A

Kanaler?

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15
Q

Aktiv transport sker …..

A

når der skal
transporteres stoffer fra en lavere
koncentration til en højere koncentration

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16
Q

Hvad indeholder Lysosomer?

A

Fordøjelsesenzymer