Podcast
Questions and Answers
What distinguishes the N-terminal end of an amino acid chain?
What distinguishes the N-terminal end of an amino acid chain?
- A free carboxyl group (-COOH)
- A side chain (R group) modification.
- A peptide bond linking it to the next amino acid.
- A free amine group (-NH2). (correct)
Which group characterizes the C-terminal end of a polypeptide chain?
Which group characterizes the C-terminal end of a polypeptide chain?
- A methyl group (-CH3)
- A hydroxyl group (-OH)
- A free amine group (-NH2).
- A free carboxyl group (-COOH). (correct)
How does the R-group contribute to the properties of an amino acid?
How does the R-group contribute to the properties of an amino acid?
- It neutralizes the charges of the amino and carboxyl groups.
- It determines the bond strength between amino acids.
- It dictates whether the amino acid is hydrophobic, hydrophilic, or charged. (correct)
- It is responsible for the peptide bond formation
What type of bond links amino acids together to form a polypeptide chain?
What type of bond links amino acids together to form a polypeptide chain?
What is the primary function of ribosomes in the context of protein synthesis?
What is the primary function of ribosomes in the context of protein synthesis?
What determines the specific order of amino acids in a protein?
What determines the specific order of amino acids in a protein?
Which of the following is the correct order of events in protein synthesis?
Which of the following is the correct order of events in protein synthesis?
Which of the following is a key difference between prokaryotic and eukaryotic translation?
Which of the following is a key difference between prokaryotic and eukaryotic translation?
What role does tRNA play in protein synthesis?
What role does tRNA play in protein synthesis?
How does the process of translation terminate?
How does the process of translation terminate?
Why is the folding of a protein crucial for its function?
Why is the folding of a protein crucial for its function?
What is the role of chaperone proteins in protein folding:
What is the role of chaperone proteins in protein folding:
Which of the following is an example of a post-translational modification?
Which of the following is an example of a post-translational modification?
How can errors in protein folding lead to disease?
How can errors in protein folding lead to disease?
What is the role of the proteasome in protein quality control?
What is the role of the proteasome in protein quality control?
How does ubiquitination contribute to protein degradation?
How does ubiquitination contribute to protein degradation?
What is the consequence of a mutation that introduces a premature stop codon in the mRNA sequence?
What is the consequence of a mutation that introduces a premature stop codon in the mRNA sequence?
How do cells respond to an accumulation of unfolded proteins in the endoplasmic reticulum (ER)?
How do cells respond to an accumulation of unfolded proteins in the endoplasmic reticulum (ER)?
What is the significance of protein domains?
What is the significance of protein domains?
How can bioinformatics tools aid in the study of protein structure and function?
How can bioinformatics tools aid in the study of protein structure and function?
Flashcards
N-terminal
N-terminal
The starting point of an amino acid chain, containing a free amine group (-NH2).
C-terminal
C-terminal
The endpoint of an amino acid chain, characterized by a free carboxyl group (-COOH).
Study Notes
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Terminals of Amino Acid Chains
- N-terminal is the starting point of the amino acid chain and contains a free amine group (-NH2).
- C-terminal is the endpoint of the chain, characterized by a free carboxyl group (-COOH).
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