3. Amino Acids

Which of the following statements about amino acids is true?

In the catalytic mechanism of lysozyme, what is the state of Glutamic acid 35 (Glu35) and Aspartic acid 52 (Asp52) at the end of the reaction?

Which four types of atoms are found in all standard amino acids?

Given that a subunit of a protein is an amino acid, which of the following statements is true?

At which position(s) in a polypeptide are amino acids limited to those with positively charged side chains?

Where in a protein would you most likely find the R group (side chain) of a hydrophobic amino acid?

Which of the following best describes the side chains (R groups) among amino acids?

Which two amino acids are combined to form the high-intensity sweetener aspartame?

Which functional group is present in amino acids but not found in starch?

Which three structural groups are present in all standard amino acids?

Which of the following amino acids is most likely to be found in the interior of a globular protein due to its hydrophobic side chain?

Every amino acid has four groups attached to a central (alpha) carbon atom. What are the four groups?

Which functional group is present in every amino acid?

Which of the following amino acids is most likely to be found in the alpha-helix region of a GPCR signaling protein?

How many different standard amino acids are commonly found in proteins in nature?