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Questions and Answers
What is the purpose of treating an amino acid solution with neutral formaldehyde?
What is the purpose of treating an amino acid solution with neutral formaldehyde?
- To form a methylene compound, allowing titration with standard alkali (correct)
- To react with the amino group to form a lactam
- To denature proteins
- To eliminate the carboxyl group's reactivity
What is the condition required for the reaction with ninhydrin to occur?
What is the condition required for the reaction with ninhydrin to occur?
- Presence of a free carboxyl group and a free amino group (correct)
- Presence of a free hydroxyl group
- Presence of a peptide linkage
- Absence of a free amino group
What is the product of deamination by oxidation?
What is the product of deamination by oxidation?
- A lactam and carbon dioxide
- A peptide linkage and water
- A ketone acid and ammonia (correct)
- An amine and an acid
What type of compound is formed when a γ-amino acid loses a molecule of water?
What type of compound is formed when a γ-amino acid loses a molecule of water?
How does Fischer describe the linkage between amino acids in a protein molecule?
How does Fischer describe the linkage between amino acids in a protein molecule?
What can be calculated using the molecular weights of proteins and amino acids?
What can be calculated using the molecular weights of proteins and amino acids?
What is the average molecular weight of proteins?
What is the average molecular weight of proteins?
What is the average number of amino acids in a protein of average molecular weight?
What is the average number of amino acids in a protein of average molecular weight?
Apart from NH2 and COOH, what do amino acids also contain?
Apart from NH2 and COOH, what do amino acids also contain?
What is the term for a compound formed by the condensation of two amino acids?
What is the term for a compound formed by the condensation of two amino acids?
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