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vitamins > vitamins > Flashcards

vitamins Flashcards

1
Q

retinol - properties

A

insoluble water
soluble in organic solvents
heat stable
destroyed by o2

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2
Q

beta carotene properite

A

insoluble in water
soluble in fat solvents
unaffected by heat
antioxidant

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3
Q

functions of vitamin a

A

rhodopsin production
skin and mucous membranes
growth and dev of children
antioxidant

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4
Q

deficiency of vit a

A

night blindness
follicular hyper keratosis
xerophthalmia
retarded growth
free radical damage

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5
Q

vit a rda

A

children -400-500 ug
teen adults and preg -600-700
lactation 950

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6
Q

vit d properties

A

most stable
fat soluble
heat stable
unaffected by acids alkali and oxygen

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7
Q

vit d function

A

control ca and p absorption
regulates ca and p in teeth and bones
ca levels in blood
stim calcium binding proteins

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8
Q

vit d rda

A

child and adults 10
teen 15

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9
Q

vitamin e prop

A

fat soluble
antioxidant
heat stable
unstable to alkali and light
stable to acid

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10
Q

vit e sources

A

nuts
seeds
avocado
eggs

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11
Q

vit e functions

A

antioxidant
protects rbc and wbs from damage
protects retina in new born

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12
Q

vit e deficiency

A

damage to cells from free radials
anaemia, reduced immunity
eye disorder in babies

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13
Q

vit k properties

A

fat soluble
heat stable
light destroyed

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14
Q

vit k sources

A

leafy green
offal
cereals

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15
Q

vit k function

A

aids clots by synthesiser prothrombin
regulates ca in bones

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16
Q

vit k deficiency

A

haemorrhage
osteo

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17
Q

vitamin c prop

A

antioxidant
most unstable
water soluble
acidic

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18
Q

vit c function

A

antioxidant
healthy guns
forms collagen - tissue formation
promotes quick wound healing
assist iron absorption
immunity by wbc

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19
Q

c def

A

scurvy
long wound heal
anaemia
sick easy

20
Q

c rda

A

children 45
teen 50-60
adults 60
preg and lac 80

21
Q

b1 prop

A

water soluble
destroyed by high temp alkali and light
70% lost in milling

22
Q

b1 sources

A

whole grain
milk
meat
offal

23
Q

b1 function

A

metabolism of carbs and fats
nerve function
growth and development of children

24
Q

b1 def

A

fatugue
beri beri
retarded growth

25
Q

b2 prop

A

water soluble
unstable at high temp
light sensitive
destroyed by alkali

26
Q

b2 sources

A

fortified breakfast cereals
milk
meat

27
Q

b2 functions

A

met of carbs protein fats
mucous membrenae
growth and development

28
Q

b2 deficiency

A

tiredness
cracked lip swollen tongue
reatrded growth

29
Q

b3 properties

A

water soluble
stable to acids and alkali
heat stable
80-90% lost during milling

30
Q

b3 sources

A

fortified breakfast
nuts
bread

31
Q

b3 functionn

A

carb metabolism
healthy skin
nerve activity

32
Q

b3 def

A

fatugue
pellagra
cognitive impairment

33
Q

b6 prop

A

water soluble
heat stable
destroyed by oxygen alkali and light

34
Q

b6 sources

A

meats
fish
green veg
nuts

35
Q

b6 functions

A

metabolism of carbs protein fats
relieved pmt symptoms
nerve functions
prevents pyrodoxine def epilepsy in babies

36
Q

b6 def

A

fatugue
pmt symptoms like mood swings
cog impairment
seizures

37
Q

b9 prop

A

water soluble
heat stable
unaffected by acids
destroyed by alkalis o2 and light

38
Q

b9 sources

A

leafy green
whole meal
offal
supplements

39
Q

b9 functions

A

formation of brains and end of spinal cord
works with b12 to form rbc
maintains immune system

40
Q

b9 def

A

spina bifida
fatugue
illness

41
Q

b9 rda

A

c 100-200ug
t and a 300
preg 500
lac 400

42
Q

b12 prop

A

water soluble
destroyed by acids alkali and light
heat stable

43
Q

b12 sources

A

animal
offal
dairy

44
Q

b12 functions

A

aids metabolism of fatty acids
metabolism of b9
myelin sheath
formation of rbc

45
Q

b12!def

A

fatugue
neutral tube defects
delayed neural implue
anaemia

46
Q

b12 rda

A

c 0.7-1 ug
t and a 1-4
preg 1.9
lac 1.9

vitamins (1 decks)

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