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Q. No. The functional groups present in zwitter ion are:
1. -NH2 , -COOH
2. -NH2 , SO3H
3. Both (1) and (2)
4. None of the above
Subtopic: α - Amino Acids, Peptide Bond, Proteins & Structure |
Level 3: 35%-60%
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The term anomers of glucose refer to:
| 1. | Isomers of glucose that differ in configurations at carbons one and four (C-1 and C-4) |
| 2. | A mixture of (D)-glucose and (L)-glucose |
| 3. | Enantiomers of glucose |
| 4. | Isomers of glucose that differ in configuration at carbon one (C-1) |
Subtopic: Carbohydrates - Classification & D-L configuration |
69%
Level 2: 60%+
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In both DNA and RNA, heterocyclic base and phosphate ester linkages are at:
| 1. | C5' and C1' respectively of the sugar molecule. |
| 2. | C1' and C5' respectively of the sugar molecule. |
| 3. | C2' and C5' respectively of the sugar molecule. |
| 4. | C5' and C2' respectively of the sugar molecule. |
Subtopic: α - Amino Acids, Peptide Bond, Proteins & Structure |
79%
Level 2: 60%+
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Given below are two statements:
In the light of the above statements, choose the most appropriate answer from the options given below:
| Statement I: | Maltose is formed by C1-C4 glycosidic linkage between two αD(+) glucose units that are reducing sugar. |
| Statement II: | Maltose is formed by C1-C6 glycosidic linkage between two αD(+) glucose & βD(+) glucose. |
In the light of the above statements, choose the most appropriate answer from the options given below:
| 1. | Both Statement I and Statement II are correct. |
| 2. | Both Statement I and Statement II are Incorrect. |
| 3. | Statement I is correct but Statement II is incorrect. |
| 4. | Statement I is incorrect but Statement II is correct. |
Subtopic: Polysaccharides & their Importance |
80%
Level 1: 80%+
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Compound 'A' on hydrolysis gives compound 'B', which on reaction with \(Br_2 \) water forms gluconic acid.
'A' originally has
\(\beta\)- glycosidic linkages. Determine compound 'A':
1. Starch
2. Cellulose
3. Amylose
4. Amylopectin
'A' originally has
\(\beta\)- glycosidic linkages. Determine compound 'A':
1. Starch
2. Cellulose
3. Amylose
4. Amylopectin
Subtopic: Polysaccharides & their Importance |
74%
Level 2: 60%+
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Which force is responsible for the stability of the helical structure in α-helix protein?
1. Vander walls force
2. Hydrogen bonding
3. \(\pi\) interaction
4. Dipole interaction
1. Vander walls force
2. Hydrogen bonding
3. \(\pi\) interaction
4. Dipole interaction
Subtopic: α - Amino Acids, Peptide Bond, Proteins & Structure |
95%
Level 1: 80%+
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The secondary structure of a protein refers to:
1. α-Helical backbone
2. Hydrophobic interactions
3. Sequence of α-amino acids
4. Fixed configuration of the polypeptide backbone
Subtopic: α - Amino Acids, Peptide Bond, Proteins & Structure |
84%
Level 1: 80%+
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Which one of the following is a water-soluble vitamin, that is not excreted easily?
| 1. | Vitamin B2 | 2. | Vitamin B1 |
| 3. | Vitamin B6 | 4. | Vitamin B12 |
Subtopic: Vitamins, Hormones & Enzymes |
88%
Level 1: 80%+
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A nitrogenous base is present in RNA nucleotides but not in DNA nucleotides. How many oxygen atoms does this base contain?
| 1. | Three (3) | 2. | Two (2) |
| 3. | Four (4) | 4. | One (1) |
Subtopic: DNA, RNA & Metal Ions |
64%
Level 2: 60%+
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Given below are two statements.
In light of the above statements, choose the correct answer from the options given below.
| Assertion (A): | Amylose is a water-insoluble component. |
| Reason (R): | Amylose is a long linear molecule with more than 200 glucose units. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation for (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation for (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
Subtopic: Polysaccharides & their Importance |
61%
Level 2: 60%+
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