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Question
Which of the following describes an association between vitamin A and vision?
a.Retinoic acid is the form required for synthesis of retinoblasts.
b.Light causes retinal to shift from a cis to a trans configuration.
c.Retinol is the form bound to beta-carotene in the corneal membrane.
d.Pigment molecules in the retina are composed of a molecule of vitamin A bound to an omega-3 fatty acid.
e.Retinol protects the visual cortex from teratogenic chemicals.
Answer
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