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Questions and Answers
What functional group does an amino group contain?
What functional group does an amino group contain?
- Oxygen and two hydrogen atoms
- Nitrogen and two hydrogen atoms (correct)
- Carbon and three hydrogen atoms
- Nitrogen and three hydrogen atoms
How many stereoisomers of amino acids are there?
How many stereoisomers of amino acids are there?
- Five
- Three
- Two (correct)
- Four
Which carbon is the amino group attached to in 𝛼-amino acids?
Which carbon is the amino group attached to in 𝛼-amino acids?
- The last carbon in the chain
- The carbon adjacent to the carboxyl group (correct)
- The central carbon
- The first carbon in the chain
How many amino acids are found in proteins?
How many amino acids are found in proteins?
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What gives the identity to an amino acid?
What gives the identity to an amino acid?
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Study Notes
Amino Acids
- An amino group (-NH2) is a functional group that contains nitrogen and hydrogen atoms bonded together.
- There are 2n possible stereoisomers of amino acids, where n is the number of asymmetric carbon atoms.
- In 𝛼-amino acids, the amino group is attached to the 𝛼-carbon (first carbon).
- There are 20 different amino acids that are commonly found in proteins.
- The identity of an amino acid is determined by its side chain (R group), which varies among different amino acids.
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Description
Test your knowledge of biochemistry with this quiz on amino acids and peptides. Explore the structure, properties, ionization, and physiological activity of peptides, including 𝛼-amino acids and peptide bonds. Perfect for students of physical therapy and biochemistry enthusiasts.
