10 Questions
What is the general structure of an amino acid?
Amino group, carboxyl group, hydrogen atom, and a side chain attached to the α-carbon
How many amino acids occur in the human body?
20
Which amino acids deviate from the L- α amino acid structure?
Glycine and Proline
How are amino acids classified based on chemical classification?
Based on solubility and ionization at physiological pH
What is the primary distinguishing factor among the 20 amino acids present in the human body?
Side chain (R-group)
Which type of amino acids prefer to function in an aqueous environment?
Polar neutral amino acids
Which of the following amino acids cannot be synthesized in the human body and must be supplied in the diet?
Arginine
What is the catabolic fate of ketogenic amino acids inside the human body?
They give rise to acetate or acetoacetate
In which condition does negative nitrogen balance occur?
Protein malnutrition (kwashiorkor)
Which amino acid becomes essential under low supply from phenylalanine?
Tyrosine
Test your knowledge of biochemistry with this quiz on the structure and function of amino acids and proteins. Explore topics such as amino acid classifications, protein organization, folding/misfolding, biological value, and important protein functions.
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