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Nutrition and metabolism > Week 7: Vitamins and minerals > Flashcards

Week 7: Vitamins and minerals Flashcards

1
Q

Can vitamins be synthesised in the body?

A

No

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2
Q

What do many vitamins act as and why?

A

Coenzymes in energy metabolism

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3
Q

How many compounds are identified vitamins?

A

13

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4
Q

What are the two substances vitamins are soluble in?

A

Water

Fat

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5
Q

Do vitamins provide energy?

A

No

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6
Q

What are the two water-soluble vitamins?

A 
Vitamin C (ascorbic acid)
B complex
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7
Q

What are the functions of the B complex?

A

Energy releasing
Hematopoietic
Other

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8
Q

How many B-vitamins are there?

A

12

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9
Q

What are B-vitamins needed for?

A 
Cellular metabolism
Formation of coenzymes
Facilitates ATP resynthesis
Conversion of pyruvate to acetyl-CoA
Erythropoiesis
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10
Q

What are the functions of vitamin C (ascorbic acid)?

A

Synthesis
Catabolism (tyrosine)
Iron absorption

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11
Q

What are the effects if you have too much vitamins C?

A

Gi distress

Kidney oxalate stone formation

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12
Q

What are the effect if you have too little vitamin C?

A

Scurvy

Poor health

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13
Q

What are the fat soluble vitamins?

A

A
D
E
K

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14
Q

What are the functions of vitamin A?

A 
Vision
Cell differenetiation
Immunity 
Reproduction
Growth
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15
Q

Where is vitamin a stored?

A

In the liver

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16
Q

What happens if you are deficient in vitamin a?

A

Loss of vision
Night blindness
Skin problems

17
Q

How is vitamin D synthesised?

A

Made in the skin from cholesterol

Activated in liver and kidney

18
Q

What is V D essential for?

A

Healthy bones
Kidney
Intesine

19
Q

What happens if you are deficient in V d?

A

Rickets
Osteomalacia
Osteoperosis

20
Q

What happens if you have too much V d?

A

Hypercalcaemia/hypercalciuria

Bone demineralisation

21
Q

What is the function of vitamin k?

A

Blood clotting

Formation of bone

22
Q

What happens if you are deficient in V k?

A

Bloody vomit
Bleeding into joint capsules
Bruising or bleeding gums

23
Q

What happens if you have to much V k?

A

Jaundice
Anaemia
Hyperbilrubemia

24
Q

What are the functions of V e?

A

Selenium metabolism

Anti oxidant

Nutrition and metabolism (25 decks)

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