Vitamines Flashcards

1
Q

B6

A

pyridoxine

—> droge huid en haaruitval + reg

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2
Q

reg sympt vit B deficientie

A
huidproblemen
ontstekingen in mondhoeken
snel vermoeid
diarree
zenuwproblemen
depressiviteit
verwardheid
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3
Q

functie B6

A

transamineringsreacties
glycogeen fosforylase
synthese van monoamine signaalstoffen

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4
Q

B8

A

biotine

–> droge huid, dun breekbaar haar, haaruitval + reg

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5
Q

doel B8

A

carboxyleringsreacties

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6
Q

B12

foliumzuur

A

B12 (in vlees, melk)
foliumzuur (bladgroente)

–> DNA synthese in de cel –> uit zich in anemie (onvoldoende ery vorming)

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7
Q
vit C (ascorbinezuur)
vit E
A

C –> hydrofiele antioxidant
E –> lipofiele oxidant

antioxidanten werking is er om ons te beschermen tegen zuurstofradicalen ROS

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8
Q

B1 (thiamine)

A

is belangrijk voor metabolisme want leidt tot de cofactor thiaminepyrofosfaat (TPP+)

snelst tekort (chronisch alcoholisme)

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9
Q

functies TPP

A

essentieel voor enzymen als:

  • pyruvaat dehydrogenase
  • a-ketoglutaraat dehydrogenase
  • a-ketozuur dehydrogenase
  • enzymen in pentose fosfaat shunt
  • betrokken bij Ach synthese
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10
Q

B2 B3

A
B2 = riboflavine
B3 = niacine

bouwstenen van elektronencarrieres, bij tekort kunnen de mitochondriale ademhaling, CZC en glyco moeilijk verlopen

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