#1
Which of the following is not an essential amino acid?
#2
Which amino acid is known as the 'building blocks of life'?
#3
Which amino acid contains a sulfur atom in its side chain?
#4
Which amino acid has a secondary amine in its side chain?
#5
Which amino acid is commonly associated with neurotransmitter function?
#6
Which amino acid is found abundantly in collagen, contributing to its triple helix structure?
#7
Which amino acid is exclusively ketogenic?
#8
Which of the following amino acids is essential in infants but not in adults?
#9
Which amino acid is involved in the biosynthesis of serotonin and melatonin?
#10
Which amino acid is a precursor for nitric oxide synthesis, playing a role in vasodilation?
#11
Which amino acid is commonly modified to form gamma-aminobutyric acid (GABA), an inhibitory neurotransmitter?
#12