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Which of the following statements is/are true about proteins and amino acids.
  • a)
    The typical length of the membrane spanning region of an integral membrane protein is 20-25 amino acids
  • b)
    Methionine and glutamine are optically inactive
  • c)
    Lysine and leucine are the only two amino acids which are exclusively ketogenic in nature
  • d)
    Tyrosine, valine and histidine are both glucogenic and ketogenic in nature
Correct answer is option 'A,C'. Can you explain this answer?
Verified Answer
Which of the following statements is/are true about proteins and amino...
Statement (a) is correct as usually the membrane spanning region of an integral membrane protein is 20-25 amino acid long.
Statement (b) is incorrect, because glycine is the only amino acid which is optically inactive as it has no chiral centre. All other amino acids have atleast one chiral centre, so all other amino acids except glycine are optically active.
Statement (c) is correct as lysine and leucine are the only two amino acids which are exclusively ketogenic in nature.
Statement (d) in incorrect as there are only five amino acids which are both glucogenic and ketogenic in nature. They are tyrosine, isoleucine, phenylalanine, tryptophan and threonine.     
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Which of the following statements is/are true about proteins and amino acids.a)The typical length of the membrane spanning region of an integral membrane protein is 20-25 amino acidsb)Methionine and glutamine are optically inactivec)Lysine and leucine are the only two amino acids which are exclusively ketogenic in natured)Tyrosine, valine and histidine are both glucogenic and ketogenic in natureCorrect answer is option 'A,C'. Can you explain this answer?
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Which of the following statements is/are true about proteins and amino acids.a)The typical length of the membrane spanning region of an integral membrane protein is 20-25 amino acidsb)Methionine and glutamine are optically inactivec)Lysine and leucine are the only two amino acids which are exclusively ketogenic in natured)Tyrosine, valine and histidine are both glucogenic and ketogenic in natureCorrect 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 is/are true about proteins and amino acids.a)The typical length of the membrane spanning region of an integral membrane protein is 20-25 amino acidsb)Methionine and glutamine are optically inactivec)Lysine and leucine are the only two amino acids which are exclusively ketogenic in natured)Tyrosine, valine and histidine are both glucogenic and ketogenic in natureCorrect 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 is/are true about proteins and amino acids.a)The typical length of the membrane spanning region of an integral membrane protein is 20-25 amino acidsb)Methionine and glutamine are optically inactivec)Lysine and leucine are the only two amino acids which are exclusively ketogenic in natured)Tyrosine, valine and histidine are both glucogenic and ketogenic in natureCorrect answer is option 'A,C'. Can you explain this answer?.
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