Fysiologi Flashcards

1
Q

Skitser Na+ absorption i en epithelial celle

A
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2
Q

Anfør omtrentlige værdier for [Cl^-] intra- og ekstracellulært.
1.
2.

A
  1. Intracl. 20 mM
  2. Extracl. 105 mM
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3
Q

Anfør omtrentlige værdier for pH intra- og ekstracellulært.
1.
2.

A
  1. Intracl. pH = 7
  2. Extracl. pH = 7,4
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4
Q

Hvis ionvalensen og den drivende kraft har forskellige fortegn er der
1. Influx
2. Efflux
3. Ingen bevægelse

A
  1. Influx
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5
Q

Angiv en omtrentlig værdi for et gennemsnitligt hvilemembranpotentiale (Vm)

A

Vm = -60 mV

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6
Q

Hvordan udregner man [H+], hvis vi kender pH?

A

[H+] = 10^(-pH)

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7
Q

Omskriv GHK ligningen så vi kan isolere for den relative kation permabilitet.

A
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8
Q

Anfør omtrentlige værdier for [Ca^(2+)] intra- og ekstracellulært.
1.
2.

A
  1. Intracl. 10^(-4) mM
  2. Extracl. 1 mM
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9
Q

Anfør omtrentlige værdier for [K^+] intra- og ekstracellulært.
1.
2.

A
  1. Intracl. 120 mM
  2. Extracl. 4,5 mM
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10
Q

Definer pH (angiv formlen)

A

pH = -log([H+])

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11
Q

Hvis ionvalensen og den drivende kraft har samme fortegn er der
1. Influx
2. Efflux
3. Ingen bevægelse

A
  1. Efflux
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12
Q

Skitser K+ udskillelse i en epithelial celle

A
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13
Q

Skitser Cl- udskillelse i en epithelial celle

A
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14
Q

Skitser glukose absorption i en epithelial celle

A
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15
Q

Anfør omtrentlige værdier for [Na^+] intra- og ekstracellulært.
1.
2.

A
  1. Intracl. 15 mM
  2. Extracl. 145 mM
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