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FNDH 620 Exam 3 with 100- verified correct answers
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FNDH 620 Exam 3 with 100- verified correct answers
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FNDH 620 Exam 3 with 100% verifiedcorrect answers
Formation of retinol from beta-carotene requires the presence of what B vitamin?
A.ascorbic acid
B.folic acid
C.niacin
D.pyrodoxal phosphate
E.None of above - correct answer-Niacin
Dietary fat is not very important regarding the digestion and absorption of pre- and provitamin A forms.
A.True
B.False - correct answer-False
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 - correct answer-Retinoid X receptors
What % of vitamin D3from diet is absorbed?
A.20
B.30
C.40
D.50
E.100 - correct answer-50
, What form of vitamin D is the major circulating form?
A.calcidiol
B.calcitriol
C.cholecalciferol
D.ergocalciferol
E.None of above - correct answer-Calcidol
The vitamin D receptor is a member of the super family of nuclear receptors that regulates gene
expression.
A.True
B.False - correct answer-True
What is the principal transport vehicle for vitamin E in the blood?
A. the blood plasma
B. lipoproteins
C. cytochrome P450 system
D. alpha tocopherol - correct answer-Lipoproteins
Which mechanism has been proposed but not proved as vitamin E's principal function against chronic
disease prevention?
A. Immune function
B. Cell cycle arrest
C.Anti-proliferation
D.DNA repair
E. Anti-oxidation - correct answer-Anti-oxidation
For which vitamin is the tolerable upper limit set because of increased tendency for bleeding?
A. Vitamin A
B. Vitamin D
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