he nitrogen on the 6-membered ring of a purine comes from A、glutamine B、Aspartate C、glutamate D、fumarate
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- Which of the following molecules do NOT contribute atoms to purine synthesis? a. Glutamine b. Aspartate c. Glycine d. LysineWhich of the following families:amino acid classifications is/are correct? a.aromatic:Met b.aspartate:Pro c.glutamate:Arg d.pyruvate:ValA derivative of a triterpene that contains four fused rings is referred to as a _____________.
- Which of the following pairs of molecules form the pyrimidine ring?a. Glutamate and carbamoyl phosphateb. Aspartate and glutaminec. Aspartate and carbamoyl phosphated. Glycine and carbamoyl phosphateWith the following amino acid side chain can the side chain of threonine form hydrogen bonds? Q.) PhenylalanineWhich of the following amino acids contains a carboxamide side chain? A.glutamine B.alanine C.isoleucine D.asparagine E.methionine
- Draw the respective enantiomer of the following sugar molecules: D-glyceraldehyde D-glucose D-mannose D-fructoseName the α-ketoacid that is formed by the transamination of each of the following amino acids: (a) Alanine (d) Leucine (b) Aspartate (e) Phenylalanine (c) Glutamate (f) TyrosineWhy are steroids classified as lipids?
- Which of the following is the C-terminal amino acid in the polypeptide glycyl-alanyl-leucyl-valyl-glutamine? A. Glycine B. Alanine C. Leucine D. Valine E. GlutamineThe immediate donors of the nitrogen atoms of urea are: a. Aspartate and glutamate b. Glutamate and carbamoyl phosphate c. Aspartate and carbamoyl phosphate d. Glutamine and aspartateThe amino acid alanine, shown below, contains all of the following functional groups except A. an amino group. B. a methyl group. C. an ester group. D. a carboxyl group.