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Questions and Answers
What is the structure of haemoglobin according to the text?
What is the structure of haemoglobin according to the text?
- Haemoglobin consists of two polypeptides of two different kinds
- Haemoglobin consists of four polypeptides of the same kind
- Haemoglobin consists of two polypeptides of the same kind
- Haemoglobin consists of four polypeptides of two different kinds (correct)
What is the preferred method of amino acid composition analysis for proteins according to the text?
What is the preferred method of amino acid composition analysis for proteins according to the text?
- Alkaline hydrolysis
- Acid hydrolysis at 110°C for 72 hours
- Acid hydrolysis at 110°C for 24 hours (correct)
- Acid hydrolysis at 110°C for 48 hours
Which amino acid is destroyed by acid hydrolysis and must be estimated by other means?
Which amino acid is destroyed by acid hydrolysis and must be estimated by other means?
- Threonine
- Serine
- Tryptophan (correct)
- Arginine
What is the purpose of performing acid hydrolysis of proteins at different time points (24, 48, and 72 hours)?
What is the purpose of performing acid hydrolysis of proteins at different time points (24, 48, and 72 hours)?
Which of the following amino acids are less destroyed by acid hydrolysis compared to alkaline treatment?
Which of the following amino acids are less destroyed by acid hydrolysis compared to alkaline treatment?
What is the term used for peptide chains with more than 12 but less than 20 residues?
What is the term used for peptide chains with more than 12 but less than 20 residues?
How is the term 'polypeptide' used in discussing single polypeptide chains?
How is the term 'polypeptide' used in discussing single polypeptide chains?
What type of proteins have more than one kind of polypeptide chains?
What type of proteins have more than one kind of polypeptide chains?
How are multimeric proteins denoted in terms of composition?
How are multimeric proteins denoted in terms of composition?
What does an 'α2-type protein' indicate?
What does an 'α2-type protein' indicate?
Which of the following enzymes is considered relatively nonspecific in cleaving peptide bonds?
Which of the following enzymes is considered relatively nonspecific in cleaving peptide bonds?
Which enzyme is highly specific and cleaves at methionine residues?
Which enzyme is highly specific and cleaves at methionine residues?
Which enzyme cleaves at arginine residues?
Which enzyme cleaves at arginine residues?
Which of the following enzymes is specific for cleaving at lysine residues?
Which of the following enzymes is specific for cleaving at lysine residues?
Which enzyme cleaves at aspartic acid and glutamic acid residues?
Which enzyme cleaves at aspartic acid and glutamic acid residues?
Which of the following enzymes is found in papaya and causes the hydrolysis of gelatin?
Which of the following enzymes is found in papaya and causes the hydrolysis of gelatin?
Which of the following statements is true about the challenges of synthesizing a specific peptide?
Which of the following statements is true about the challenges of synthesizing a specific peptide?
What is the purpose of blocking groups in peptide synthesis?
What is the purpose of blocking groups in peptide synthesis?
What is a requirement for the blocking groups used in peptide synthesis?
What is a requirement for the blocking groups used in peptide synthesis?
What does the text imply about the process of adding each amino acid during peptide synthesis?
What does the text imply about the process of adding each amino acid during peptide synthesis?
Which of the following statements is NOT mentioned in the text?
Which of the following statements is NOT mentioned in the text?
Which of the following is a structural protein that forms inelastic fibrils?
Which of the following is a structural protein that forms inelastic fibrils?
What type of proteins are α-Keratins?
What type of proteins are α-Keratins?
Which of the following is an essential component of ligaments?
Which of the following is an essential component of ligaments?
What type of modules in scaffold proteins bind to proteins with tyrosine residues phosphorylated on its phenolic –OH?
What type of modules in scaffold proteins bind to proteins with tyrosine residues phosphorylated on its phenolic –OH?
Which of the following proteins are produced by the lymphocytes of vertebrates?
Which of the following proteins are produced by the lymphocytes of vertebrates?
What is the purpose of antifreeze proteins in Arctic and Antarctic fishes?
What is the purpose of antifreeze proteins in Arctic and Antarctic fishes?
Which of the following is an example of an exploitive protein?
Which of the following is an example of an exploitive protein?
What is the function of resilin?
What is the function of resilin?
Which of the following proteins is considered an artificial sweetener for human consumption?
Which of the following proteins is considered an artificial sweetener for human consumption?
What type of proteins do certain marine organisms, such as mussels, secrete?
What type of proteins do certain marine organisms, such as mussels, secrete?
