3. Amino Acids

Which set of words best describes the side chain of the amino acid threonine?

How many standard amino acids are commonly found in proteins?

Side groups (R groups) of amino acids are typically classified under which of the following categories?

Which pair of amino acids can form hydrogen bonds between their R groups?

Which type of amino acid deficiency is most commonly associated with the development of macrocytic anemia?

All amino acids, such as the four represented in the figure, contain __________.

How many phosphate groups are present in a molecule of adenosine triphosphate (ATP)?

Which of the following is a functional group that is part of the building blocks of proteins (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?