Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Leaving Cert Home Ec - > Vitamins > Flashcards

Vitamins Flashcards

1
Q

Fat soluble vitamins

A

A
D
E
K

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Two types of vitamin A

A

Retinol (pure vitamin A)

Beta-carotene (pro vitamin A)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Properties of Retinol Vitamin A

A 
Yellow, fat soluble
Insoluble in water
Soluble in organic substance eg acetone 
Heat stable effected by prolong high temperature
Destroyed by oxygen
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Properties of beta-carotene vitamin A

A 
Yellow/orange, fat soluble
Insoluble in water
Soluble in solvents eg alcohol
Heat stable
Effected by prolonged high temperatures 
Unaffacted by oxygen 
Powerful antioxidant can counteract effects of free radicals
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are free radical

A

Chemicals that cause damage to the body

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Sources of retinol vitamin A

A

Eggs
Cheese
Oily fish

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Sources of beta-carotene vitamin A

A

Carrots
Tomatoes
Red peppers
Sweet potatoes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Functions of Vitamin A

A

Adapt eye to dim light using pigment Rhodopsin
Healthy skin and eyes
Growth and development in children
Beta-carotene is a powerful antioxidant

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Deficiency effects of vitamin A

A

Night blindness
Follicular hyperkeratosis (rough, dry skin)
Stunted growth in kids
Risk of damage to cells by free radicals increasing risk of disease eg cancer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Rda of vitamin A

A

600-700 ug

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Types of vitamin D

A 
D3 cholecalciferol (made when UV light shines on skin)
D2 ergocalciferol (made when UV light shines on fungi and yeast)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Properties of vitamin D

A 
Most stable of all vitamins
Fat soluble
Insoluble in water
Heat stable - unaffected by preservation and cooking
Unaffected by acids, alkalis and oxygen
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Sources of vitamin D

A

Sunlight
Oily fish
Fortified milk
Eggs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Functions of vitamin D

A

Helps absorb calcium and phosphorus in the blood
Regulated amount of calcium and phosphorus in bones and teeth giving strength
Regulates calcium levels in blood. When it’s too low, it stimulates production of calcium bonding proteins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Deficiency effects of vitamin D

A

None disease and tooth decay

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Types of bone disease

A

Rickets
Osteomalacia
Osteoporosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Rda of vitamin D

A

10-15 ug

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is hypervitaminosis

A

Occurs due to excessive intake of vitamin A and D as they accumulate in the liver and reach toxic levels
Eg. Over using dietary supplements

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Symptoms of hypervitaminosis A

A

Miscarriage
Birth defects
Bone pain

(Only retinol)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Symptoms of hupeevitaminosis D

A

Vomiting
Weight loss
Kidney damage
Death

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Vitamin E name

A

Tocopherol

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Properties of vitamin E

A 
Fat soluble
Insoluble in water
Unstable to alkalis and light
Antioxidant
Heat stable
Stable to acids
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Sources of vitamin E

A

Nuts and seeds
Avocados
Eggs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Functions of vitamin E

A

Powerful antioxidant
Protects red and white blood cells from damage
Protects babies’ eyes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Effects of deficiency of vitamin E

A

Risk of damage by free radicals
Anemia due to lack of red blood cells
Reduced immunity due to lack of white blood cells
Eye disorders in babies

26
Q

Types of vitamin K

A

K1 made by plants
K2 made by intestinal bacteria
K3 a synthetic form

27
Q

Properties of vitamin K

A

Fat soluble
Insoluble in water
Heat stable

28
Q

Sources of k

A

Green leafy veg
Cereal
Oily fish
Made by bacteria in small intestine

29
Q

Function of vitamin K

A

Aids blood clotting

Regulates levels of calcium in bones

30
Q

Effects of deficiency of vitamin K

A

Slow blood clotting (common in babies with low intake)

Increased risk of bone disease

31
Q

Properties of vitamin c

A 
Most unstable
Insoluble in fat
Water soluble
Antioxidant
Acidic
Destroyed by heat, alkalis, light
32
Q

Sources of vitamin c

A 
Peppers
Bkackcurrents
Oranges
Lemons
Kiwis
33
Q

Function of vitamin C

A 
Healthy gums
Forms collagen which is need to hold cells together forming tissue
Promotes quick wound healing
Assists with absorption of iron 
Maintains immune system
Powerful antioxidant
34
Q

How does vitamin c help absorb iron

A

Chemically changes ferric iron (non-haem) into ferrous iron (haem)

35
Q

Effects of deficiency of vitamin c

A

Scurvy - inflamed or receding gum, tooth loss
Weak body tissue that easily bleeds and bruises
Wounds take longer to heal, increasing risk of infection
Anemia
Increased chance of cold flu etc
Risk of damage by free radicals

36
Q

Rda of vitamin +c

A

60mg

37
Q

Types of vitamin B

A 
B1 thiamine
B2 riboflavin 
B3 niacin
B6 pyridoxine
B12 cobalamin
Folate/ folic acid
38
Q

Properties of vitamin B12

A

Water soluble
Insoluble in fat
Destroyed by strong acids, alkalis and light
Heat stable, some lost in cooking

39
Q

Sources of vitamin B12

A

Offal, meat, eggs

40
Q

Functions of Vigamin B12

A

Metabolism of fatty acids and folic acids
Maintains healthy myelin sheath
Aids formation or red blood cells

41
Q

Effects of define of B12

A

Tiredness and irritability
Risk of NTDs in baby
Delayed nerve impulses
Anemia

42
Q

RDA B12

A

1.4 ug

43
Q

Forms of folic acid and folate

A

Folate is natural and found in food

Folic acid is synthetic and used in supplements

44
Q

Properties of folate

A 
Water soluble
Insoluble in fat
Heat stable, some lost in cooking
Destroyed by alkalis, oxygen and light 
Unaffected by acids
45
Q

Source of folate

A

Whole wall bread
Fortified breakfast cereals
Offal

46
Q

Functions of folic acid

A

Form brain and spinal chord of foetus
Forms red blood cells with B12
Maintains white blood cells

47
Q

Effects of deficiency of B12

A

NTDs eg spinal bífida
Anemia
Risk of infection and illness

48
Q

Rda of folic acid
Adult
Pregnancy

A

300 ug

500 ug

49
Q

Vitamin B1 name

A

Thiamine

50
Q

Properties of B1

A

Water soluble
Insoluble in fat
Destroyed by high temp

51
Q

Sources of B1

A

Fortified breakfast cera,
Meat
Egg

52
Q

Functions B1 and deficiency diseases

A

Metabolism - tiredness
Maintenance of nerve - beri beri (muscular disease)
Growth of children - stunted growth

53
Q

B2 name

A

Riboflavin

54
Q

Properties of b2

A

Water soluble
Fat insoluble
Unstable at high temp

55
Q

Sources of B2

A

Fortified breakfast cereals
Meat
Eggs

56
Q

Functions and deficiency of B2

A

Metabolism - tiredness
Healthy mucous membranes - cracked lips, dry eyes
Growth of children - stunted growth

57
Q

B3 properties

A

Water soluble
Insoluble in fat
Heat stable

58
Q

Sources of B3

A

Fortified breakfast cereal
Meat
Offal

59
Q

Functions and deficiency of B3

A

Metabolism - tired
Maintains healthy skin - Pelleagra (dry cracked skin)
Supports nerve activity - delayed nerve impulses

60
Q

B6 properke

A

Water soluble
Insoluble in fat
Heat stable

61
Q

Source of B6

A

Meat
Fish
Offal

62
Q

Functions and deficiency of B6

A

Metabolism- tiredness
Relieves symptoms of Pre Menstrual Tensions (PMT) and nausea in early pregnancy - mode swings and depression in pregnancy
Supports healthy nerve activity - delayed nerve impulses
Prevents pyridoxine dependent epilepsy in babies x seizure in baby

Leaving Cert Home Ec - (41 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions