Which of the following statements accurately describes vitamin A's role in vision?
Retinol protects the visual cortex from teratogenic chemicals.
Retinol is the form bound to beta-carotene in the corneal membrane.
Pigment molecules in the retina are composed of vitamin A and the protein elastin.
Light causes retinal to shift from a cis to a trans configuration.
Retinoic acid is the form required for synthesis of retinoblasts.
The lowest continuing intake of a nutrient that will maintain a specified criterion of
adequacy is called a nutrient ________.
What is the role of omega-3 fatty acids in immune function?
Of all the amino acids, how many must be supplied by the diet?