vitamin 3 Flashcards
tell the active from of pantothenic acid
coenzyme A
tell the reaction of pantothenic acid
acts as acetyl acceptor or donor
tell the main functions of pantothenic acid
Krebs cycle
synthesis of cholesterol , steroid hormones, acytilcholine
FA oxidation and elongation
acytalation of DNA, affects expression
tell deficiencies of pantothenic acid
NONE
consequences hypertension
tell food sources of pantothenic acid
eggs and grains
tell the active form of cobalamin
5- dehyadenosyl cobalamin
tell the reaction of cobalamin
methionine synthesis
tell functions of cobalamin
binds to salivary protein
methionine synthesis from homocysteine
recycling of folate
important for cell devision
where cobalamin is made
is an intrinsic factor made by partial cells in stomach, absorbed in SI
circulated on protein on blood
tell deficiencies of cobalamin
RARE
if yes, malabsorption , lack of stomach acid
Megalobastic anaemia, methylmalonic acidesis - result
tell food sources of cobalamin
ONLY animals
tell functions of Vit C
strong reducing agent help in enzyme functioning hydroxylation of collagen formation fo neurotransmitter ( dopamine and noradrenalin) synthesis of carnetine uptake of dietary non heme iron concentration of Vit C in leukocytes
tell how ascorbic acid helps in collagen hydroxylation
hydroxylation of lysin and proline of collagen in ER
tell deficiency of vitamins C
scurvy - due to lack of fresh foods
brusing ,pale skin
excess smoking cause depletion of it
excess will be excreted as oxalate or ascorbate in kidneys
food sources of vit c
most in plants, citric
tell process losses of vit c
stable at high temp and low pH
UV sensitive
very soluble, will leach
