Vitamins Test Flashcards
1
Q
can vitamins be synthesized
A
no
2
Q
how are fat soluble vitamins absorbed
A
lymphatic system -> blood (by chylomicrons)
3
Q
how are fat soluble vitamins carried through the blood
A
-lipoproteins
-carrier proteins
4
Q
where are fat vits stored
A
-liver
-adipose tissue
5
Q
vitamin excretion
A
fat
-not easily (except K)
water
-easily (except B-6 and B-12)
6
Q
which vitamins are excreted to prevent toxicity
A
water soluble vitamins
7
Q
which vitamins are antioxidants
A
A C E K Riboflavin
8
Q
what do antioxidants do
A
-protect cell membrane from oxidation
-stops chain reactions caused by free radicals
-free radicals used to destroy pathogens, antioxidants control those reactions
9
Q
coenzymes
A
vitamins are cofactors that bind to apoenzymes to make holoenzymes
10
Q
A
