FNDH 620 CORE EXAMS SET 2025/2026 QUESTION AND
SOLUTIONS GRADED A+
✔✔Methionine cycle requires:
a) B6
b) B12
c) folate
d) Niacin
e) all of the above - ✔✔e
✔✔Which anemia is related to folate deficiency?
a) Pernicious anemia
b) Megaloblastic anemia
c) Hypochromic, microcytic anemia
d) Hemodilution anemia - ✔✔b
a) lack of B12 - due to intrinsic factor
c) lack of B6 - lack of heme synthesis
✔✔To protect against birth defects, a higher RDA of folic acid has been suggested for
pregnant women.
True or False - ✔✔True
- take 0.6 mg
✔✔Vitamin B12 is only available from _____ products.
a) grain
b) fruit
c) animal
d) vegetable - ✔✔c
✔✔Why the RDA of vitamin B12 is so low?
a) In the liver, free cobalamin can be stored for years
b) Little B12 in the body is degraded
c) Whole body turnover is about 0.1% daily
d) All of a, b, c
e) None of the above - ✔✔d
✔✔High dietary folate may cure megaloblastic anemia caused by:
, a) folate deficiency
b) B12 deficiency
c) less methionine
d) both a & b
e) all of a, b, & c - ✔✔d
✔✔Formation of retinol from B-carotene requires the presence of what B vitamin?
a) ascorbic acid
b) folic acid
c) niacin
d) pyrodoxal phosphate
e) none of the above - ✔✔c
✔✔Dietary fat is not very important regarding the digestion and absorption of pre- and
provitamin A forms.
True or False - ✔✔False
- Oil helps with absorption!
✔✔Within the nucleus, retinoic acid binds to ___________ :
a) retinoic acid nuclear receptors
b) transcription factors
c) retinoid X receptors
d) retinoic acid response elements
e) both A and C - ✔✔c
a) it's retinoic acid receptor (no nuclear)
✔✔What % of vitamin D from the diet is absorbed?
a) 20
b) 30
c) 40
d) 50
e) 100 - ✔✔d
✔✔What form of vitamin D is circulating in the blood?
a) calcidiol
b) calcitriol
c) cholecalciferol (D3 - from diet)
d) ergocalciferol (D2 - from diet)
SOLUTIONS GRADED A+
✔✔Methionine cycle requires:
a) B6
b) B12
c) folate
d) Niacin
e) all of the above - ✔✔e
✔✔Which anemia is related to folate deficiency?
a) Pernicious anemia
b) Megaloblastic anemia
c) Hypochromic, microcytic anemia
d) Hemodilution anemia - ✔✔b
a) lack of B12 - due to intrinsic factor
c) lack of B6 - lack of heme synthesis
✔✔To protect against birth defects, a higher RDA of folic acid has been suggested for
pregnant women.
True or False - ✔✔True
- take 0.6 mg
✔✔Vitamin B12 is only available from _____ products.
a) grain
b) fruit
c) animal
d) vegetable - ✔✔c
✔✔Why the RDA of vitamin B12 is so low?
a) In the liver, free cobalamin can be stored for years
b) Little B12 in the body is degraded
c) Whole body turnover is about 0.1% daily
d) All of a, b, c
e) None of the above - ✔✔d
✔✔High dietary folate may cure megaloblastic anemia caused by:
, a) folate deficiency
b) B12 deficiency
c) less methionine
d) both a & b
e) all of a, b, & c - ✔✔d
✔✔Formation of retinol from B-carotene requires the presence of what B vitamin?
a) ascorbic acid
b) folic acid
c) niacin
d) pyrodoxal phosphate
e) none of the above - ✔✔c
✔✔Dietary fat is not very important regarding the digestion and absorption of pre- and
provitamin A forms.
True or False - ✔✔False
- Oil helps with absorption!
✔✔Within the nucleus, retinoic acid binds to ___________ :
a) retinoic acid nuclear receptors
b) transcription factors
c) retinoid X receptors
d) retinoic acid response elements
e) both A and C - ✔✔c
a) it's retinoic acid receptor (no nuclear)
✔✔What % of vitamin D from the diet is absorbed?
a) 20
b) 30
c) 40
d) 50
e) 100 - ✔✔d
✔✔What form of vitamin D is circulating in the blood?
a) calcidiol
b) calcitriol
c) cholecalciferol (D3 - from diet)
d) ergocalciferol (D2 - from diet)
