324447
Which of the following statements are correct? 1. -amino acid present in proteins is L-amino acid 2. Amino acids contain as well as group 3. No. of amino groups & carboxylic groups are same in amino acids always 4.Tyrosine was first obtained from cheese
1 A,B
2 A,B,C
3 B,C.D
4 A,B.D
Explanation:
No. of amino & groups may be same or different in amino acids.
CHXII14:BIOMOLECULES
324448
Which among the following statements are true for glycine? (I) It exists in crystalline form (II) It is optically active (III) It is soluble in water (IV) It can form Zwitter ions
1 (I), (II) and (III)
2 (I), (II) and (IV)
3 (I), (III) and (IV)
4 (II), (III) and (IV)
Explanation:
Glycine is optically inactive.
CHXII14:BIOMOLECULES
324449
Pick out the incorrect statement.
1 p-aminobenzenesulphonic acid as a dipolar ion; while p-aminobenzoic acid does not
2 In a electrolysis experiment, Alpha - amino acids migrate at the isoelectric point towards electrodes
3 Sulphanilic acid is soluble in base, but not in acid
4 is more acidic than
Explanation:
Conceptual Questions
CHXII14:BIOMOLECULES
324450
Which of the following statements is correct?
1 All amino acids are optically active.
2 All amino acids except lysine are optically active
3 All amino acids except glutamic acid are optically active.
4 All amino acids except glycine are optically active.
Explanation:
Glycine is optically inactive while all other amino acids are optically active.
324447
Which of the following statements are correct? 1. -amino acid present in proteins is L-amino acid 2. Amino acids contain as well as group 3. No. of amino groups & carboxylic groups are same in amino acids always 4.Tyrosine was first obtained from cheese
1 A,B
2 A,B,C
3 B,C.D
4 A,B.D
Explanation:
No. of amino & groups may be same or different in amino acids.
CHXII14:BIOMOLECULES
324448
Which among the following statements are true for glycine? (I) It exists in crystalline form (II) It is optically active (III) It is soluble in water (IV) It can form Zwitter ions
1 (I), (II) and (III)
2 (I), (II) and (IV)
3 (I), (III) and (IV)
4 (II), (III) and (IV)
Explanation:
Glycine is optically inactive.
CHXII14:BIOMOLECULES
324449
Pick out the incorrect statement.
1 p-aminobenzenesulphonic acid as a dipolar ion; while p-aminobenzoic acid does not
2 In a electrolysis experiment, Alpha - amino acids migrate at the isoelectric point towards electrodes
3 Sulphanilic acid is soluble in base, but not in acid
4 is more acidic than
Explanation:
Conceptual Questions
CHXII14:BIOMOLECULES
324450
Which of the following statements is correct?
1 All amino acids are optically active.
2 All amino acids except lysine are optically active
3 All amino acids except glutamic acid are optically active.
4 All amino acids except glycine are optically active.
Explanation:
Glycine is optically inactive while all other amino acids are optically active.
324447
Which of the following statements are correct? 1. -amino acid present in proteins is L-amino acid 2. Amino acids contain as well as group 3. No. of amino groups & carboxylic groups are same in amino acids always 4.Tyrosine was first obtained from cheese
1 A,B
2 A,B,C
3 B,C.D
4 A,B.D
Explanation:
No. of amino & groups may be same or different in amino acids.
CHXII14:BIOMOLECULES
324448
Which among the following statements are true for glycine? (I) It exists in crystalline form (II) It is optically active (III) It is soluble in water (IV) It can form Zwitter ions
1 (I), (II) and (III)
2 (I), (II) and (IV)
3 (I), (III) and (IV)
4 (II), (III) and (IV)
Explanation:
Glycine is optically inactive.
CHXII14:BIOMOLECULES
324449
Pick out the incorrect statement.
1 p-aminobenzenesulphonic acid as a dipolar ion; while p-aminobenzoic acid does not
2 In a electrolysis experiment, Alpha - amino acids migrate at the isoelectric point towards electrodes
3 Sulphanilic acid is soluble in base, but not in acid
4 is more acidic than
Explanation:
Conceptual Questions
CHXII14:BIOMOLECULES
324450
Which of the following statements is correct?
1 All amino acids are optically active.
2 All amino acids except lysine are optically active
3 All amino acids except glutamic acid are optically active.
4 All amino acids except glycine are optically active.
Explanation:
Glycine is optically inactive while all other amino acids are optically active.
324447
Which of the following statements are correct? 1. -amino acid present in proteins is L-amino acid 2. Amino acids contain as well as group 3. No. of amino groups & carboxylic groups are same in amino acids always 4.Tyrosine was first obtained from cheese
1 A,B
2 A,B,C
3 B,C.D
4 A,B.D
Explanation:
No. of amino & groups may be same or different in amino acids.
CHXII14:BIOMOLECULES
324448
Which among the following statements are true for glycine? (I) It exists in crystalline form (II) It is optically active (III) It is soluble in water (IV) It can form Zwitter ions
1 (I), (II) and (III)
2 (I), (II) and (IV)
3 (I), (III) and (IV)
4 (II), (III) and (IV)
Explanation:
Glycine is optically inactive.
CHXII14:BIOMOLECULES
324449
Pick out the incorrect statement.
1 p-aminobenzenesulphonic acid as a dipolar ion; while p-aminobenzoic acid does not
2 In a electrolysis experiment, Alpha - amino acids migrate at the isoelectric point towards electrodes
3 Sulphanilic acid is soluble in base, but not in acid
4 is more acidic than
Explanation:
Conceptual Questions
CHXII14:BIOMOLECULES
324450
Which of the following statements is correct?
1 All amino acids are optically active.
2 All amino acids except lysine are optically active
3 All amino acids except glutamic acid are optically active.
4 All amino acids except glycine are optically active.
Explanation:
Glycine is optically inactive while all other amino acids are optically active.
