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Questions and Answers
Which amino acid is involved in the synthesis of serotonin and vitamin B3?
Which amino acid is involved in the synthesis of serotonin and vitamin B3?
- Glutamic acid
- Tyrosine
- Tryptophan (correct)
- Histidine
What hormone is synthesized from the amino acid tyrosine?
What hormone is synthesized from the amino acid tyrosine?
- Gamma amino butyric acid (GABA)
- Serotonin
- Histamine
- Epinephrine (correct)
Which amino acid can be converted into histamine?
Which amino acid can be converted into histamine?
- Glycine
- Arginine
- Histidine (correct)
- Tryptophan
Which amino acids are utilized in the synthesis of creatine?
Which amino acids are utilized in the synthesis of creatine?
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Which amino acids are involved in the synthesis of glutathione?
Which amino acids are involved in the synthesis of glutathione?
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Study Notes
Biological Functions of Amino Acids
- Amino acids are the building blocks of proteins.
- Tyrosine is used to synthesize:
- Thyroid hormones (T3, T4)
- Epinephrine and norepinephrine (neurotransmitters)
- Melanin (pigment)
- Tryptophan is used to synthesize:
- Serotonin (neurotransmitter)
- Vitamin B3 (niacin)
- Histidine is converted into histamine (neurotransmitter)
- Glycine is used for the synthesis of:
- Heme (component of hemoglobin)
- Creatine (muscle energy source)
- Bile salts (aid in fat digestion)
- Glutathione (antioxidant)
- Glutamic acid is used to synthesize GABA (neurotransmitter)
- Arginine and methionine are also used to synthesize creatine.
- Glutamate, cysteine, and glycine are used to synthesize glutathione.
- Aspartate and glutamine are used to synthesize pyrimidines (bases found in DNA and RNA).
- Glycine, aspartic acid, glutamine, and serine are used to synthesize purines (bases found in DNA and RNA).
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