29. Amino Acids

Amino acids are joined together by which kind of bond?

Which of the following macromolecules is made up of amino acids?

Amino acids are joined together into a protein chain by which of the following types of bonds?

Which tool is used to determine the specific triplet codons that correspond to each amino acid?

The unique properties of the 20 common amino acids are determined by which of the following?

The codon $\text{UAA}$ is known as a stop codon. What does it code for in protein synthesis?

How did Hershey and Chase use radioactivity to determine whether proteins or $\mathrm{DNA}$ were the genetic material?

Which of the following correctly describes peptidoglycan?

How many amino acids does each $\mathrm{codon}$ code for in the genetic code?

Show the peptides that would result from cleavage by the indicated reagent: 

a. Val-Arg-Gly-Met-Arg-Ala-Ser by carboxypeptidase A

b. Ser-Phe-Lys-Met-Pro-Ser-Ala-Asp by cyanogen bromide

c. Arg-Ser-Pro-Lys-Lys-Ser-Glu-Gly by trypsin

Which of the following molecules is responsible for coding the sequence of amino acids in a protein?

In which way do the structures of amino acids differ from each other?

For the enzyme isopentenyl pyrophosphate isomerase, IPP binds tightly as a result of interactions between the active site amino acid residues and the diphosphate of IPP. Without concerning yourself with the structure of amino acids, what charges might you expect to be present in the active site to hold IPP in place so that the enzymatic reactions can occur?

Show how the amino acid alanine can be synthesized from propanoic acid.