Which Amino Acid Is Needed by the Brain for the Synthesis

question 156

Multiple Choice

Which amino acid is needed by the brain for the synthesis of serotonin?

• A) Leucine
• B) Lysine
• C) Methionine
• D) Tryptophan

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Proven methods or strategies that consistently show results superior to those achieved with other means, and are used as benchmarks.

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