Vitamins Flashcards

1
Q

Which vitamins are fat soluble?

A

Vitamins A, D, E & K

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2
Q

Which vitamins are water soluble?

A

Vitamins B & C

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3
Q

How are fat soluble vitamins absorbed?

A

They follow the pathway of fat absorption

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4
Q

How are water soluble vitamins absorbed?

A

By diffusion or mediated transport

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5
Q

Where is vitamins C absorbed?

A

Jejunum

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6
Q

Where are the B vitamins absorbed?

A

Ileum

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7
Q

What does vitamin B12 require for absorption?

A

Intrinsic factor

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8
Q

What is the role of vitamin A?

A

Cellular growth and differentiation, immune system (lymphocyte production) and appetite regulation

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9
Q

What is the role of B vitamins?

A

Involved in cell metabolism - mainly coenzymes

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10
Q

What is the role of vitamin C?

A

Synthesis of collagen, NT, acts as antioxidant, aids non-heme iron absorption

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11
Q

What is the role of vitamin D?

A

Enhances intestinal absorption of calcium, phosphate, iron, magnesium & zinc

Note: main two to acknowledge are calcium & phosphate

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12
Q

What is the role of vitamin E?

A

Antioxidant

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13
Q

What is the role of vitamin K?

A

It is needed for blood clotting & healthy bones

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14
Q

What are the sources of vitamin A?

A

Liver
Diary products
Oily fish

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15
Q

What are the sources of B vitamins?

A
Pulses
Beans
Grains
Potatoes 
Bananas
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16
Q

What are the sources of vitamin C?

A

Citrus fruits
Green veg
Potatoes
Kidneys

17
Q

What are the sources of vitamin D?

A

Most is synthesised in the skin using UV from sunlight

Some is gained through diet such as oily fish & eggs

18
Q

What are the sources of vitamin E?

A
Plant oils
Soya
Corn
Olive oil
Nuts & seeds
19
Q

What are the sources of vitamin K?

A

Leafy vegetables
Vegetable oils
Cereal grains

20
Q

What can happen if you are deficient in vitamin A?

A
Night blindness
Dry eyes
Impaired hearing
Impaired taste and smell
Increased susceptibility to infection
21
Q

What can happen if you are deficient in B12?

A

B12 & B9 (folate) deficiency can affect DNA synthesis in red blood cells and lead to macrolytic anaemia (where RBC are larger than normal but have decreased haemoglobin)

22
Q

What can happen if you are deficient in vitamin C?

A

Weakness
Shortness of breath
Aching bones

23
Q

What can happen if you are deficient in vitamin D?

A

Bone deformities in children (Rickets)

Bone pain in adults (osteomalacia)

24
Q

What can happen if you are deficient in vitamin E?

A

Red cell destruction
Retinopathy

Note: these are less likely as vitamin E is stored

25
Q

What can happen if you are deficient in vitamin K?

A

Uncontrollable bleeding
Weakened bones
Calcification of arteries