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Which of the following statements are wrong about amino acids?
  • a)
    All amino acids are electrically neutral at physiological pH
  • b)
    Any amino acid present in peptide is known as residue
  • c)
    The nature of side chain is not important for tertiary structure of proteins
  • d)
    A free amino acid cannot have protonated primary carboxyl and deprotonated primary amino group simultaneously
Correct answer is option 'A,C'. Can you explain this answer?
Verified Answer
Which of the following statements are wrong about amino acids?a)All am...
Option (a) is incorrect
All amino acids are not electrically neutral at pH = 7. Rather, the charge on an amino acid at physiological pH is determined by pKR value of their side chains.
Option (c) is incorrect
The nature of side chains of amino acids is important for tertiary structure of proteins.
Option (d) is correct
The pH of solution is an important factor that determines the state of protonation of an amino acid. The carboxyl group (COO–) is deprotonated first because its pKa is about 2 and pKa of amino group (–NH3+) is about 9.
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Which of the following statements are wrong about amino acids?a)All amino acids are electrically neutral at physiological pHb)Any amino acid present in peptide is known as residuec)The nature of side chain is not important for tertiary structure of proteinsd)A free amino acid cannot have protonated primary carboxyl and deprotonated primary amino group simultaneouslyCorrect answer is option 'A,C'. Can you explain this answer?
Question Description
Which of the following statements are wrong about amino acids?a)All amino acids are electrically neutral at physiological pHb)Any amino acid present in peptide is known as residuec)The nature of side chain is not important for tertiary structure of proteinsd)A free amino acid cannot have protonated primary carboxyl and deprotonated primary amino group simultaneouslyCorrect answer is option 'A,C'. Can you explain this answer? for IIT JAM 2024 is part of IIT JAM preparation. The Question and answers have been prepared according to the IIT JAM exam syllabus. Information about Which of the following statements are wrong about amino acids?a)All amino acids are electrically neutral at physiological pHb)Any amino acid present in peptide is known as residuec)The nature of side chain is not important for tertiary structure of proteinsd)A free amino acid cannot have protonated primary carboxyl and deprotonated primary amino group simultaneouslyCorrect answer is option 'A,C'. Can you explain this answer? covers all topics & solutions for IIT JAM 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements are wrong about amino acids?a)All amino acids are electrically neutral at physiological pHb)Any amino acid present in peptide is known as residuec)The nature of side chain is not important for tertiary structure of proteinsd)A free amino acid cannot have protonated primary carboxyl and deprotonated primary amino group simultaneouslyCorrect answer is option 'A,C'. Can you explain this answer?.
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