Podcast
Questions and Answers
What type of reaction is peptide bond formation an example of?
What type of reaction is peptide bond formation an example of?
- Reduction reaction
- Oxidation reaction
- Hydrolysis reaction
- Condensation reaction (correct)
What is the term for a structure formed when a few amino acids are joined through peptide bonds?
What is the term for a structure formed when a few amino acids are joined through peptide bonds?
- Dipeptide
- Polypeptide
- Tripeptide
- Oligopeptide (correct)
What is the term for the residue at the end of a peptide with a free α-amino group?
What is the term for the residue at the end of a peptide with a free α-amino group?
- Carboxyl-terminal residue
- C-terminal residue
- N-terminal residue
- Amino-terminal residue (correct)
What is the term for the residue at the end of a peptide with a free carboxyl group?
What is the term for the residue at the end of a peptide with a free carboxyl group?
What are molecules referred to as polypeptides generally characterized by?
What are molecules referred to as polypeptides generally characterized by?
What is the primary reason that prevents free rotation around the peptide bond?
What is the primary reason that prevents free rotation around the peptide bond?
Which characteristic of the peptide bond contributes to the trans configuration in the polypeptide chain?
Which characteristic of the peptide bond contributes to the trans configuration in the polypeptide chain?
What contributes solely to the charged groups present in polypeptides?
What contributes solely to the charged groups present in polypeptides?
Which characteristic of the peptide bond results in it being shorter than a single bond?
Which characteristic of the peptide bond results in it being shorter than a single bond?
What allows the polypeptide chain to assume a variety of possible configurations?
What allows the polypeptide chain to assume a variety of possible configurations?
Flashcards are hidden until you start studying
Study Notes
Peptide Bond Formation
- Peptide bond formation is an example of a dehydration reaction.
Peptide Structure
- A few amino acids joined through peptide bonds form a structure called an oligopeptide.
- The residue at the end of a peptide with a free α-amino group is called the amino terminus or N-terminus.
- The residue at the end of a peptide with a free carboxyl group is called the carboxyl terminus or C-terminus.
Polypeptide Characteristics
- Polypeptides are generally characterized by being long chains of amino acids.
- Free rotation around the peptide bond is prevented primarily due to the partial double-bond character of the peptide bond.
Peptide Bond Characteristics
- The partial double-bond character of the peptide bond contributes to the trans configuration in the polypeptide chain.
- The charged groups present in polypeptides are solely due to the ionizable side chains of amino acids.
- The peptide bond is shorter than a single bond due to the resonance stabilization of the peptide bond.
- The peptide bond allows the polypeptide chain to assume a variety of possible configurations due to its flexibility.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
