Which of the following food substances can be converted to vitamin A in the body?
A) Tryptophan
B) Chlorophyll
C) Xanthophyll
D) Beta-carotene
Correct Answer:
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Q2: How many different forms of vitamin A
Q3: Which of the following is responsible for
Q4: What are the known effects of raising
Q5: What do retinal and unsaturated fatty acids
Q6: Approximately what percentage of the body's vitamin
Q7: As far as is known,vitamin A does
Q8: What form of vitamin A supports vision
Q9: Retinol-binding protein is required to transport vitamin
A)A.
B)E.
C)K.
D)D.
Q10: What tissue contains the majority of the
Q11: Which of the following is NOT among
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