Subtopic: Â Amino Acids |
 88%
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The activator of alcohol dehydrogenase enzyme is:
| 1. | Zinc | 2. | Magnesium |
| 3. | Manganese | 4. | Molybdenum |
Subtopic: Â Enzyme Cofactors |
 71%
From NCERT
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Consider the two statements:
| Assertion (A): | Iodine-KI reagent can be used to detect starch in a sample. |
| Reason (R): | Starch can hold iodine molecules in its helical portion and starch-iodine is blue in colour. |
| 1. | Both (A) and (R) are True but (R) does not correctly explain(A). |
| 2. | (A) is True but (R) is False. |
| 3. | Both (A) and (R) are False. |
| 4. | Both (A) and (R) are True and (R) correctly explains (A). |
Subtopic: Â Carbohydrates: Starch & Glycogen |
 76%
From NCERT
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In the absence of an enzyme, the catalysed reaction:
| 1. | does not take place |
| 2. | takes place at a very slow rate |
| 3. | takes place at a higher rate |
| 4. | is not affected at all |
Subtopic: Â Enzymes |Â Enzyme Catalysis |
 84%
From NCERT
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Subtopic: Â Nucleic Acid |Â The DNA |
 83%
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Subtopic: Â Proteins |
 71%
From NCERT
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Prosthetic groups are distinguished from other cofactors in that they are:
1. tightly bound to the apoenzyme
2. inorganic compounds
3. metal ions
4. vitamins
1. tightly bound to the apoenzyme
2. inorganic compounds
3. metal ions
4. vitamins
Subtopic: Â Enzyme Cofactors |
 91%
From NCERT
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Consider the given two statements:
| Assertion (A): | Lipids come under acid insoluble fraction of the cell. |
| Reason (R): | Acid insoluble fraction is the macromolecular fraction and lipids are macromolecules. |
| 1. | (A) is True but (R) is False |
| 2. | Both (A) and (R) are True and (R) correctly explains (A) |
| 3. | Both (A) and (R) are True and but (R) does not correctly explain (A) |
| 4. | (A) is False but (R) is True |
Subtopic: Â Introduction |
 75%
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Concanavalin A is:
| 1. | a primary metabolite in living organism and an alkaloid |
| 2. | a primary metabolite in living organism and a lectin |
| 3. | a secondary metabolite in living organism and a lectin |
| 4. | a secondary metabolite in living organism and an alkaloid |
Subtopic: Â Primary & Secondary Metabolites |
 87%
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Polysaccharides can be cleaved into constituent monosaccharides by hydrolysis. How many water molecules will be needed to cleave a polysaccharide, containing 100 monosaccharides, completely?
| 1. | 99 | 2. | 100 |
| 3. | 101 | 4. | 51 |
Subtopic: Â Carbohydrates |Â Carbohydrates: Glycosidic Bond & Disaccharide |
 77%
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