The most active form of vitamin D, 1, 25-dihydroxycholecalciferol, is synthesized from its precursor,25 -hydroxycholecalciferol, in
A) the kidney.
B) the liver.
C) the skin.
D) the intestinal mucosa.
E) plants. It must be supplied to humans in the diet.
Correct Answer:
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Q6: Which of the following statements about vitamin
Q7: Tetrahydrofolate is involved in the de novo
Q8: Pyridoxal phosphate is involved in
A) oxidation-reduction reactions.
B)
Q9: All of the following statements about the
Q10: The percentage of the total dietary protein
Q12: Which compound is NOT an immediate participant
Q13: Which of the following vitamins can be
Q14: Vitamin B12 contains
A) copper.
B) cobalt.
C) cadmium.
D) chromium.
E)
Q15: Vitamin A can be synthesized in the
Q16: Thiamine deficiency results in accumulation of which
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