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    Chemistry The Science in Context
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    Exam 21: The Main Group Elements: Life and the Periodic Table
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    Iodine's Role Is Very Specific
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Iodine's Role Is Very Specific

Question 25

Question 25

Multiple Choice

Iodine's role is very specific. It is incorporated into a hormone, ________, that regulates energy production and use.


A) melatonin
B) thyroxine
C) dopamine
D) insulin
E) iodocin

Correct Answer:

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