29. Amino Acids

Proteins and Amino Acids

Multiple Choice
Amino acids are joined together by which kind of bond?
Multiple Choice
Which of the following macromolecules is made up of amino acids?
Multiple Choice
Amino acids are joined together into a protein chain by which of the following types of bonds?
Multiple Choice
Which tool is used to determine the specific triplet codons that correspond to each amino acid?
Multiple Choice
The unique properties of the 20 common amino acids are determined by which of the following?
Multiple Choice
The codon UAA is known as a stop codon. What does it code for in protein synthesis?
Multiple Choice
How did Hershey and Chase use radioactivity to determine whether proteins or DNA were the genetic material?
Multiple Choice
Which of the following correctly describes peptidoglycan?
Multiple Choice
How many amino acids does each codon code for in the genetic code?
Textbook Question
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
Multiple Choice
Which of the following molecules is responsible for coding the sequence of amino acids in a protein?
Multiple Choice
In which way do the structures of amino acids differ from each other?
Multiple Choice
Which of the following statements is NOT true about all of the naturally occurring amino acids (excluding glycine)?
Textbook Question
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?
Textbook Question
Show how the amino acid alanine can be synthesized from propanoic acid.