Which of the following substances is a provitamin or a precursor for a vitamin?
A) Beta-carotene
B) Alpha-tocopherol
C) Biotin
D) Collagen
Correct Answer:
Verified
Q12: _ are water-soluble vitamins.
A)Thiamin,vitamin K,and niacin
B)Vitamin D,A,and
Q13: _ are water-soluble vitamins.
A) Vitamins B-12, B-6,
Q14: _ are fat-soluble vitamins.
A) Vitamins K, E,
Q15: A(An)_ is a substance that protects vulnerable
Q16: Which of the following substances enhances the
Q18: The human body can absorb some _
Q19: The body can store large amounts of
Q20: The human body can absorb some of
Q21: Which of the following statements is true?
A)
Q22: Vitamin A is necessary for the
A) production
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