Multiple Choice
Insulin increases the entry of tryptophan into the brain by ____.
A) weakening the blood-brain barrier
B) converting tryptophan into a compound that more easily enters the brain
C) increasing metabolic activity only in those areas of the brain that use tryptophan
D) causing certain competing amino acids to enter other cells, outside the brain
Correct Answer:
Verified
Correct Answer:
Verified
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