Vitamins Flashcards

1
Q

Which vitamins are water soluble?

A

Vitamin B and C making them not toxic in excess

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2
Q

Which vitamins are insoluble?

A

Vitamins A, D, E and K are fat soluable, not stored or excreted easily making them toxic, they’re also oxidising agents

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3
Q

What are all B vitamins?

A

They are all coenzymes in metabolic pathways

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4
Q

Vitamins B1, B2, B3, B5, B7/8, B9 and B12

A

B1 - Thiamin - deficiency can be accumulation of lactate or beri beri
B2 - riboflavin - UV sensitive
B3 - nicotinic acid - functions as NAD and NADP
B5 - Pantothenic acid - coenzyme A component
B7/8 - Biotin - prosthetic group for carboxylations
B9 - Folate - carries 1C units
B12 - cobalamin - carry methyl groups

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5
Q

Vitamin C?

A

An antioxidant needed for Fe2+ formation

Deficiency can cause scurvy

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6
Q

Vitamin A?

A

Affects protein synthesis

Toxicity results in dermatitis

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7
Q

Vitamin E?

A

Prevents oxidation of fatty acids

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8
Q

Vitamin D2?

A

Formed from UV light
Corrects values of calcium and phosphate
Toxicity forms hypocalcemia

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9
Q

Vitamin D3?

A

Formed by skin UV light

Can form rickets or osteomalacia

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10
Q

Vitamin K?

A

Can result in blood clotting defect if deficient

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