Which of the following amino acids represent the branched-chain amino acids?
Glycine, alanine, threonine
Phenylalanine, tyrosine, tryptophan
Valine, leucine, isoleucine
Arginine, lysine, histidine
2. Which group of amino acids are metabolized mainly in skeletal muscles?
Those with side chains containing aromatic rings
Those with side chains that are branched
Those with side chains containing basic groups
Those with side chains containing sulfur atoms
3. Hyperhomocysteinemia is an independent risk factor for cardiovascular disease. Homocysteine is endogenously generated from:
Cysteine
Threonine
Methionine
Taurine