The type of biochemical reaction shown in the figure is catalysed by a group of enzymes called as:
1.
Transferases
2.
Lyases
3.
Ligases
4.
Oxidoreductases
Subtopic: Â Enzymes Classification |
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Level 1: 80%+
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Identify the incorrect statement:
| 1. | Cytosine is common for both DNA and RNA. |
| 2. | Uracil is present in RNA at the place of Thymine. |
| 3. | A nitrogenous base is linked to the OH of 1'C pentose sugar through a N-glycosidic linkage to form a nucleoside. |
| 4. | When a phosphate group is linked to OH of 2'C of a nucleoside through phosphoester linkage, a corresponding nucleotide is formed. |
Subtopic: Â Nucleic Acid: Nucleotides |
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Level 2: 60%+
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All the following biomolecules can be called both polymers and macromolecules except:
1. Lipids
2. Proteins
3. Carbohydrates
4. Nucleic acids
1. Lipids
2. Proteins
3. Carbohydrates
4. Nucleic acids
Subtopic: Â Lipids |
 88%
Level 1: 80%+
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Which of the following secondary metabolites is a carbohydrate-binding protein [Lectin]?
1. Abrin
2. Vinblastin
3. Curcumin
4. Concanavalin A
1. Abrin
2. Vinblastin
3. Curcumin
4. Concanavalin A
Subtopic: Â Primary & Secondary Metabolites |
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Level 1: 80%+
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Subtopic: Â Amino Acids |
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The activator of alcohol dehydrogenase enzyme is:
| 1. | Zinc | 2. | Magnesium |
| 3. | Manganese | 4. | Molybdenum |
Subtopic: Â Enzyme Cofactors |
 71%
Level 2: 60%+
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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%
Level 2: 60%+
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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%
Level 1: 80%+
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Subtopic: Â Nucleic Acid |Â The DNA |
 83%
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Subtopic: Â Proteins |
 72%
Level 2: 60%+
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