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Q. No.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 |
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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 |
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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 |
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Match List–I (Carbohydrates) with List – II (Cyclic Structures) and select the correct option:
1. A – 4; B – 1; C – 2; D – 3
2. A – 1; B – 4; C – 3; D – 2
3. A – 2; B – 3; C – 4; D – 1
4. A – 1; B – 3; C – 2; D – 4
| List - I (Carbohydrates) |
List - II (Cyclic Structures) |
||
| A. | α − D −Glucopyranose | 1. |  |
| B. | β −D − Glucopyranose | 2. |  |
| C. | α − D − Fructofuranose | 3. |  |
| D. | β − D −Fructofuranose | 4. |  |
1. A – 4; B – 1; C – 2; D – 3
2. A – 1; B – 4; C – 3; D – 2
3. A – 2; B – 3; C – 4; D – 1
4. A – 1; B – 3; C – 2; D – 4
Subtopic: Carbohydrates - Classification & D-L configuration |
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Which of the following cyclic forms represents the pyranose form of the linear carbohydrate shown in the image?
| 1. |  |
2. |  |
| 3. |  |
4. |  |
Subtopic: Carbohydrates - Classification & D-L configuration |
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A biomolecule gives the following observations:
The correct structure of the biomolecule, from the following, is:
| (i) | With Br2/H2O, it gives monocarboxylic acid |
| (ii) | With acetate, it gives tetraacetate |
| (iii) | With HI/Red P, it gives isopentane |
The correct structure of the biomolecule, from the following, is:
| 1. |  |
2. |  |
| 3. |  |
4. |  |
Subtopic: Carbohydrates - Classification & D-L configuration |
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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 |
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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 |
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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 |
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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 |
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