During the formation of the peptide bond which of the following takes place?(a) Hydroxyl group is lost from its carboxyl group of one amino acid and a hydrogen atom is lost from its amino group of another amino acid(b) Hydrogen atom is lost from its carboxyl group of one amino acid and a hydroxyl group is lost from its amino group of another amino acid(c) Hydroxyl group is lost from its carboxyl group of one amino acid and a hydroxyl group is lost from its amino group of another amino acid(d) Hydrogen atom is lost from its carboxyl group of one amino acid and a hydrogen atom is lost from its amino group of another amino acidThe question was posed to me in an online quiz.The doubt is from Peptides and Proteins topic in section Amino Acids, Peptides and Proteins of Biochemistry

During the formation of the peptide bond which of the following takes

1.	During the formation of the peptide bond which of the following takes place?(a) Hydroxyl group is lost from its carboxyl group of one amino acid and a hydrogen atom is lost from its amino group of another amino acid(b) Hydrogen atom is lost from its carboxyl group of one amino acid and a hydroxyl group is lost from its amino group of another amino acid(c) Hydroxyl group is lost from its carboxyl group of one amino acid and a hydroxyl group is lost from its amino group of another amino acid(d) Hydrogen atom is lost from its carboxyl group of one amino acid and a hydrogen atom is lost from its amino group of another amino acidThe question was posed to me in an online quiz.The doubt is from Peptides and Proteins topic in section Amino Acids, Peptides and Proteins of Biochemistry
Answer» The correct choice is (a) Hydroxyl group is lost from its CARBOXYL group of ONE amino acid and a hydrogen atom is lost from its amino group of another amino acid Explanation: The α-amino group of one amino acid ACTS as a NUCLEOPHILE to displace the hydroxyl group of another amino acid FORMING a peptide bond.

Discussion

No Comment Found

Related InterviewSolutions

Edman degradation is used for _________(a) Identifying N-terminal amino acids(b) Identifying C-terminal amino acids(c) Identifying amino acid(d) Identifying carbohydratesI got this question by my school teacher while I was bunking the class.My question is from Protein Sequences and Evolution topic in portion Amino Acids, Peptides and Proteins of Biochemistry
Which part of the amino acid gives it uniqueness?(a) Amino group(b) Carboxyl group(c) Side chain(d) None of the mentionedThe question was asked by my college director while I was bunking the class.I'm obligated to ask this question of Peptides and Proteins topic in division Amino Acids, Peptides and Proteins of Biochemistry
The factor which does not affect pKa value of an amino acid is _________(a) The loss of charge in the α-carboxyl and α-amino groups(b) The interactions with other peptide R groups(c) Other environmental factors(d) Molecular weightI have been asked this question by my college director while I was bunking the class.My question is taken from Peptides and Proteins in section Amino Acids, Peptides and Proteins of Biochemistry
Which of the following statements is false?(a) Oxidation of cysteine residue with performic acid is done to break disulfide bond in proteins(b) Reduction of cysteine residue with dithiothreitol is done to break disulfide bond in proteins(c) Reduction of cysteine residue with performic acid is done to break disulfide bond in proteins(d) Reduced cysteine is further acetylated by iodoacetateI have been asked this question by my college director while I was bunking the class.The query is from Protein Sequences and Evolution topic in section Amino Acids, Peptides and Proteins of Biochemistry
Peptide bond is a _________(a) Covalent bond(b) Ionic bond(c) Metallic bond(d) Hydrogen bondThe question was posed to me in homework.My question is based upon Peptides and Proteins topic in section Amino Acids, Peptides and Proteins of Biochemistry
Which of the following is true?(a) The disulfide bridges formed by reduction of the sulfhydryl groups on cysteine stabilizes protein tertiary structure(b) The disulfide bridges formed by oxidation of the sulfhydryl groups on cysteine destabilizes protein tertiary structure(c) The disulfide bridges formed by oxidation of the sulfhydryl groups on cysteine stabilizes protein tertiary structure(d) The disulfide bridges formed by reduction of the sulfhydryl groups on cysteine destabilizes protein tertiary structureI have been asked this question in an interview.The doubt is from The Covalent Structure of Proteins topic in division Amino Acids, Peptides and Proteins of Biochemistry
Which of the following compound is not involved in Edman degradation?(a) Phenylisothiocyanate(b) CF3 COOH(c) FDNB(d) PhenylthiocarbonylThis question was addressed to me in an interview for internship.My enquiry is from Protein Sequences and Evolution topic in division Amino Acids, Peptides and Proteins of Biochemistry
The pattern on paper in chromatography is called __________(a) Chroming(b) Chroma(c) Chromatograph(d) ChromatogramI have been asked this question in class test.The above asked question is from Working with Proteins topic in portion Amino Acids, Peptides and Proteins of Biochemistry
Hemoglobin is a __________(a) Monomer(b) Dimer(c) Trimer(d) TetramerThis question was posed to me in a national level competition.Asked question is from The Covalent Structure of Proteins topic in portion Amino Acids, Peptides and Proteins of Biochemistry
Which of the following is a 39-residue hormone of the anterior pituitary gland?(a) Corticotropin(b) Glucagon(c) Insulin(d) BradykininI have been asked this question by my school teacher while I was bunking the class.The query is from Peptides and Proteins in chapter Amino Acids, Peptides and Proteins of Biochemistry

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment