When viewing items at night or in very dim light,light strikes the retina of the eyes
A) and causes the retinal to change from its cis form to its trans form.
B) and splits the rhodopsin into opsin and all-trans-retinal.
C) to trigger an electrical signal along the optic nerve.
D) All of these choices are accurate.
Correct Answer:
Verified
Q1: Vitamin A deficiency is characterized by the
A)inability
Q2: Excess amounts of most water-soluble vitamins are
A)stored
Q3: Beta-carotene
A)can be converted to vitamin A in
Q4: When consumed in recommended amounts,approximately _ of
Q6: Which of the following does NOT describe
Q7: The current RDA for vitamin A is
Q8: Of the following,the best source of preformed
Q9: Of the following,the best source of provitamin
Q10: A deficiency of vitamin A can lead
Q11: After absorption,the fat-soluble vitamins are distributed to
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