BR: BIOCHEM 2.0 EXAM QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS VERIFIED
B9 deficiency affects
B12 and vice versa
B9 gives methyl group to
B12
B12 gives methyl group to
homocysteine
B12 deficiency causes what anemia (bc of intrinsic factor)
pernicious
what happens if your are deficient in B vitamins during remethylation cycle
you will be deficient in methionine
where is vitamin D stored
melanin
Vitamin D synthesis
7-dehydrocholesterol >(UV light)> Cholecalciferol >(liver)> 25,Hydroxycholecalciferol
>(@ kidney-1 alpha hydroxylase)> 1,25-dihydroxycholecalciferol = Vitamin D3 (active
form)
ferritin function
stores iron in body for future use
transferrin function
, iron transport
fe 3+
ferric - most active
fe 2+
ferrous - most absorbable
too much Cu 2+
wilsons disease
process of iron absorption
ferric (in food)
vitamin C converts to ferrous to be absorbed in intestines
copper converts it back to ferric to be used in the body
deficiency of calcium or magnesium results in
tetany
what are the antioxidants
ACES
vitamin A, C, E, selenium
PTH and calcitonin effect on serum calcium
PTH increases
calcitonin decreases
how many calories per gram do carbs provide
4
monosaccharides are categorized as
aldehydes or ketones
COMPLETE SOLUTIONS VERIFIED
B9 deficiency affects
B12 and vice versa
B9 gives methyl group to
B12
B12 gives methyl group to
homocysteine
B12 deficiency causes what anemia (bc of intrinsic factor)
pernicious
what happens if your are deficient in B vitamins during remethylation cycle
you will be deficient in methionine
where is vitamin D stored
melanin
Vitamin D synthesis
7-dehydrocholesterol >(UV light)> Cholecalciferol >(liver)> 25,Hydroxycholecalciferol
>(@ kidney-1 alpha hydroxylase)> 1,25-dihydroxycholecalciferol = Vitamin D3 (active
form)
ferritin function
stores iron in body for future use
transferrin function
, iron transport
fe 3+
ferric - most active
fe 2+
ferrous - most absorbable
too much Cu 2+
wilsons disease
process of iron absorption
ferric (in food)
vitamin C converts to ferrous to be absorbed in intestines
copper converts it back to ferric to be used in the body
deficiency of calcium or magnesium results in
tetany
what are the antioxidants
ACES
vitamin A, C, E, selenium
PTH and calcitonin effect on serum calcium
PTH increases
calcitonin decreases
how many calories per gram do carbs provide
4
monosaccharides are categorized as
aldehydes or ketones
