Amino Acids
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NEET DIGITAL LIBRARY
CHXII14:BIOMOLECULES

324443 Assertion :
Tryptophan is an example of non - essential amino acid
Reason :
The amino acids that are not synthesised in human body are non - essential amino acids.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are correct.
AIIMS - 2019
CHXII14:BIOMOLECULES

324444 Consider the following statements about amino acids.
I. The amino acids that constitute proteins are all L-amino acids
II. Among the twenty common amino acids that constitute proteins, glycine is the only one that does not possess a chiral centre.
III. An important and sensitive test for the detection of L-amino acids is the ninhydrin colour test
IV. Nitrous acid liberated nitrous oxide from amino acids
Which of the following statements is correct?

1 I, II and IV
2 I, III and IV
3 II and IV
4 I, II and III
CHXII14:BIOMOLECULES

324445 Which of the following statements are correct?
(I) Proteins on hydrolysis give only \({\mathrm{\alpha}}\)-amino acids.
(II) Gln stands for glutamic acid.
(III) Amino acids with equal number of amino and carboxyl groups are neutral.
(IV) All naturally occurring \({\mathrm{\alpha}}\)-amino acids are optically active.

1 (I) and (III)
2 (I), (II) and (IV)
3 (III) and (IV)
4 (II), (III) and (IV)
CHXII14:BIOMOLECULES

324446 Which of the following statements is not correct?

1 Proteins are poly amides formed from amino acids.
2 Except glycine, all other amino acids show optical activity.
3 Natural proteins are made up of L-isomers of amino acids.
4 In \(\alpha {\text{ - amino acids - N}}{{\text{H}}_{\text{2}}}\) and \(\mathrm{-\mathrm{COOH}}\) groups are attached to different carbon atoms.
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CHXII14:BIOMOLECULES

324443 Assertion :
Tryptophan is an example of non - essential amino acid
Reason :
The amino acids that are not synthesised in human body are non - essential amino acids.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are correct.
AIIMS - 2019
CHXII14:BIOMOLECULES

324444 Consider the following statements about amino acids.
I. The amino acids that constitute proteins are all L-amino acids
II. Among the twenty common amino acids that constitute proteins, glycine is the only one that does not possess a chiral centre.
III. An important and sensitive test for the detection of L-amino acids is the ninhydrin colour test
IV. Nitrous acid liberated nitrous oxide from amino acids
Which of the following statements is correct?

1 I, II and IV
2 I, III and IV
3 II and IV
4 I, II and III
CHXII14:BIOMOLECULES

324445 Which of the following statements are correct?
(I) Proteins on hydrolysis give only \({\mathrm{\alpha}}\)-amino acids.
(II) Gln stands for glutamic acid.
(III) Amino acids with equal number of amino and carboxyl groups are neutral.
(IV) All naturally occurring \({\mathrm{\alpha}}\)-amino acids are optically active.

1 (I) and (III)
2 (I), (II) and (IV)
3 (III) and (IV)
4 (II), (III) and (IV)
CHXII14:BIOMOLECULES

324446 Which of the following statements is not correct?

1 Proteins are poly amides formed from amino acids.
2 Except glycine, all other amino acids show optical activity.
3 Natural proteins are made up of L-isomers of amino acids.
4 In \(\alpha {\text{ - amino acids - N}}{{\text{H}}_{\text{2}}}\) and \(\mathrm{-\mathrm{COOH}}\) groups are attached to different carbon atoms.
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CHXII14:BIOMOLECULES

324443 Assertion :
Tryptophan is an example of non - essential amino acid
Reason :
The amino acids that are not synthesised in human body are non - essential amino acids.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are correct.
AIIMS - 2019
CHXII14:BIOMOLECULES

324444 Consider the following statements about amino acids.
I. The amino acids that constitute proteins are all L-amino acids
II. Among the twenty common amino acids that constitute proteins, glycine is the only one that does not possess a chiral centre.
III. An important and sensitive test for the detection of L-amino acids is the ninhydrin colour test
IV. Nitrous acid liberated nitrous oxide from amino acids
Which of the following statements is correct?

1 I, II and IV
2 I, III and IV
3 II and IV
4 I, II and III
CHXII14:BIOMOLECULES

324445 Which of the following statements are correct?
(I) Proteins on hydrolysis give only \({\mathrm{\alpha}}\)-amino acids.
(II) Gln stands for glutamic acid.
(III) Amino acids with equal number of amino and carboxyl groups are neutral.
(IV) All naturally occurring \({\mathrm{\alpha}}\)-amino acids are optically active.

1 (I) and (III)
2 (I), (II) and (IV)
3 (III) and (IV)
4 (II), (III) and (IV)
CHXII14:BIOMOLECULES

324446 Which of the following statements is not correct?

1 Proteins are poly amides formed from amino acids.
2 Except glycine, all other amino acids show optical activity.
3 Natural proteins are made up of L-isomers of amino acids.
4 In \(\alpha {\text{ - amino acids - N}}{{\text{H}}_{\text{2}}}\) and \(\mathrm{-\mathrm{COOH}}\) groups are attached to different carbon atoms.
NEET DIGITAL LIBRARY
CHXII14:BIOMOLECULES

324443 Assertion :
Tryptophan is an example of non - essential amino acid
Reason :
The amino acids that are not synthesised in human body are non - essential amino acids.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are correct.
AIIMS - 2019
CHXII14:BIOMOLECULES

324444 Consider the following statements about amino acids.
I. The amino acids that constitute proteins are all L-amino acids
II. Among the twenty common amino acids that constitute proteins, glycine is the only one that does not possess a chiral centre.
III. An important and sensitive test for the detection of L-amino acids is the ninhydrin colour test
IV. Nitrous acid liberated nitrous oxide from amino acids
Which of the following statements is correct?

1 I, II and IV
2 I, III and IV
3 II and IV
4 I, II and III
CHXII14:BIOMOLECULES

324445 Which of the following statements are correct?
(I) Proteins on hydrolysis give only \({\mathrm{\alpha}}\)-amino acids.
(II) Gln stands for glutamic acid.
(III) Amino acids with equal number of amino and carboxyl groups are neutral.
(IV) All naturally occurring \({\mathrm{\alpha}}\)-amino acids are optically active.

1 (I) and (III)
2 (I), (II) and (IV)
3 (III) and (IV)
4 (II), (III) and (IV)
CHXII14:BIOMOLECULES

324446 Which of the following statements is not correct?

1 Proteins are poly amides formed from amino acids.
2 Except glycine, all other amino acids show optical activity.
3 Natural proteins are made up of L-isomers of amino acids.
4 In \(\alpha {\text{ - amino acids - N}}{{\text{H}}_{\text{2}}}\) and \(\mathrm{-\mathrm{COOH}}\) groups are attached to different carbon atoms.
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