3. Amino Acids

Which pair of amino acids can have ionic interactions?

Twenty different amino acids are found in the proteins of cells. What distinguishes these molecules from one another?

Which of the following is the primary building block of proteins?

Which of the following accounts for the differences among the various amino acids?

Which functional groups are common to all amino acids?

In all standard amino acids, which functional groups are always present on the alpha carbon (in their non-modified form)?

Which of the following is the monomeric unit that makes up proteins?

Which element in the side chain is most likely responsible for methionine's unique properties?

Of all the different bond types found in proteins, which one is primarily responsible for linking amino acids together in the primary structure?

Which of the following is NOT a measure of protein quality in food?

Which functional groups are present in the chemical structure of every standard amino acid?

Which of the following functional groups is found in all standard amino acids?

Which of the following amino acids may be required in increased amounts during periods of physiological stress?

Where would the leucine side chain most likely be found in a protein dissolved in water?

The bonding of two amino acid molecules to form a larger molecule requires the: