Vitamins Flashcards
Why is the relevance of vit K to the foetus?
It can’t cross the placenta barrier and the intestines don’t have to bacteria able to produce it
What is the key source of vit K?
Green leafy vegetables
What process is B12 responsible for?
DNA synthesis
What is vit K responsible for?
Clotting
What is vit B6 responsible for?
Trans/deamination
What is vit B12’s intrinsic factor and what makes it?
Glycoproteins and gastric cells
What compound does B3 add to?
NAD
What does vit B1 do?
Convert pyruvate to acetyl coA
Generally what do group B vitamins take part in?
Metabolism
What does B2 make?
FAD
What does biotin do?
Carboxylation reactions
What does vit B9 (folate) do?
Contributes to DNA synthesis
How are folate and vit B12 linked?
Vit B12 convert folate to a different form allowing the DNA synthesis cycle to continue
What does D3 do?
Maintain calcium and phosphate levels
What does vit A do?
Make a hormone contributing to vision
What does vit E do?
Stops FA oxidation
What 2 things do vit C do?
Convert Fe3 to Fe2 and helps heal wounds as it creates collagen
What’s the difference between a primary and secondary deficiency?
Primary is when your not eating enough but secondary is an internal problem
What type of vitamin is pantothenic acid?
B
What does pantothenic acid do?
Used in coA
What vitamin is riboflavin?
B2
Where does biotin come from?
Intestinal bacteria
What is pantothenic acid?
Vit B6
What is thiamine?
Vit B1
What is cobalamin?
Vit B12
What is vit B3 called?
Niacin
What is ascorbic acid?
Vit C
Which vitamins are water soluble?
B and C
Where do we get riboflavin?
Milk
Where do we get vit B12?
Green vegetables
Where do we get ascorbic acid?
Cereal and protein
Which vit can be toxic in excess?
A and D
What is vit D3 also called?
Cholecalciferol
Where do we get vit D3?
Animals
Which groups of vitamins have multiple members?
Vit D and B
Where do we get vit A?
Orange fruit
What is ergocalciferol?
Vit D2
Where do we get vit D2?
Plants
Where do we get vit E?
Oil and nuts
What vitamin is involved in scurvy?
C
What causes beri-beri?
Vit B1
Which vitamin won’t cross the barrier of the placenta?
Vit E
