Would you recommend β-carotene supplementation to a smoker to decrease the risk of lung cancer?
A) Yes-β-carotene can quench singlet oxygen.
B) Yes-smoking increases free radical formation; β-carotene can decrease free radicals.
C) No-β-carotene supplements may be harmful to smokers and their use is not advised for the general public.
D) No-β-carotene supplements can cause vitamin A toxicity and liver cirrhosis.
Correct Answer:
Verified
Q21: The vitamin D response element (VDRE)is found
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Q23: Structurally,vitamin D is derived from _.
A)a steroid
B)an
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A)beta-carotene
B)alpha-tocopherol
C)beta-cryptoxanthin
D)lycopene
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