The following statements about retinol are true EXCEPT for:
A) It is toxic at high dosages.
B) It has hormone-like activity in that it has cellular receptors which act as transcription enhancers.
C) It can be oxidized in the body to retinoic acid.
D) It is an intermediate in the isomerization of trans-retinal to 11-cis-retinal in the "visual cycle" of the eye.
E) It can not be stored for long periods in the body.
Correct Answer:
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