(Solved): Homoserine and homocysteine are related to serine and cysteine by having an aldehyde group. an addi ...

Homoserine and homocysteine are related to serine and cysteine by having an aldehyde group. an additional methylene group. an additional carboxyl group. a phosphoryl group. an extra amino group. 1 point Transamination of pyruvate with glutamate as amino group donor yields alanine. cysteine. serine. aspartate. valine. 1 point All the following are true statements regarding the 3-phosphoglycerate (3-PG) EXCEPT: Serine, glycine, and cysteine are all nonessential amino acids. Serine production is regulated by a feedback inhibition. 3-PG is diverted from glycolysis by phosphoglycerate mutase. Glycine can be derived from serine. Production of glycine also produces N5, N10-methylene-THF which is important in the biosynthesis of purines.