15 Questions
What is the main functional group found in amino acids?
Amino group
Which carbon is considered the chiral center in amino acids?
2
What makes each amino acid unique from others?
An R group
What role does the α-carbon play in the structure of amino acids?
It acts as the chiral center
How many substituents are directly attached to the α-carbon in amino acids?
3
Which type of amino acids are classified by the R group into five main classes?
Nonpolar, aliphatic
Which amino acid residue has a cyclic pyrrolidine ring structure?
Proline
Which class of amino acids is characterized by having aromatic side chains and being relatively nonpolar?
Aromatic
Which amino acid is significantly more polar than phenylalanine due to the presence of a specific functional group?
Tyrosine
What property allows tryptophan and tyrosine to absorb ultraviolet light to a greater extent compared to phenylalanine?
Presence of nitro group
Which group of amino acids participate in hydrophobic interactions due to their nonpolar nature?
Aromatic R groups
Which amino acid residue has an imino group held in a rigid conformation affecting the flexibility of polypeptides?
Proline
Which amino acid has an aliphatic side chain with a distinctive cyclic structure?
Glycine
What system specifies the absolute configuration of amino acid stereoisomers?
D, L system
What is the significance of the ring structure involving -NH2 in proline?
Holds the imino group in a rigid conformation
Explore the fundamental concepts of protein macromolecules, including the structure and properties of amino acids. Learn about the common structural features of amino acids and how they contribute to protein formation. Dive into the essential components that make up the language of protein structure.
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