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Q. No.
Assertion(A):
Enzymes are divided into eight different classes.
Reason(R):
The most important of all classes is ligases.
1.
Both (A) and (R) are true and (R) is the correct explanation of (A).
2.
Both (A) and (R) are true but (R) is not the correct explanation of (A).
3.
(A) is true but (R) is false.
4.
Both (A) and (R) are false.
Subtopic: Enzymes Classification |
78%
Level 2: 60%+
Hints
Which of the following is true for non-competitive enzyme inhibition?
| 1. | Vmax decreases, Km remains same |
| 2. | Inhibitor can attach with the enzyme at a region other than active site |
| 3. | A typical example is cyanide inhibiting cytochrome oxidase |
| 4. | More than one option is true. |
Subtopic: Enzyme Inhibition: Introduction | Enzyme Inhibition |
71%
Level 2: 60%+
Hints
Inulin is a collection of:
1. Fructose polymers
2. Sucrose polymers
3. Lactose polymers
4. Glucose polymers
1. Fructose polymers
2. Sucrose polymers
3. Lactose polymers
4. Glucose polymers
Subtopic: Carbohydrates | Carbohydrates: Cellulose, Chitin, Inulin & Agar |
96%
Level 1: 80%+
Hints
'Monellin' is :
| 1. | A non-toxic sweetener |
| 2. | A protein obtained from a West African berry plant |
| 3. | Both (1) and (2) |
| 4. | A polysaccharide |
Subtopic: Carbohydrates: Cellulose, Chitin, Inulin & Agar |
81%
Level 1: 80%+
Hints
How many unsaturated fatty acids are mentioned in the box?
1. Five
2. Two
3. One
4. Four
| Arachidonic acid, Palmitic acid, Oleic acid, Stearic acid, Linoleic acid, Linolenic acid |
2. Two
3. One
4. Four
Subtopic: Lipids | Lipids: Fatty Acids |
58%
Level 3: 35%-60%
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Arrange the following RNA in relative abundance present in a cell:
1. rRNA > tRNA > mRNA
2. rRNA > mRNA > rRNA
3. tRNA > rRNA > mRNA
4. mRNA > rRNA > tRNA
| tRNA, mRNA, rRNA |
2. rRNA > mRNA > rRNA
3. tRNA > rRNA > mRNA
4. mRNA > rRNA > tRNA
Subtopic: Nucleic Acid |
54%
Level 3: 35%-60%
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Which one of the following is incorrect for uncompetitive inhibition?
| 1. | Vmax and Km both decreases |
| 2. | ES, ESI are possible but EI is not possible |
| 3. | Vmax and Km both increases |
| 4. | All are incorrect |
Subtopic: Enzyme Inhibition: Introduction | Enzyme Inhibition |
Level 4: Below 35%
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Read the enzymatic reation and choose the correct option:
| I. |  |
| II. |  |
| III. |  |
| IV. |  |
| V. |  |
| Oxidore ductase | Transferase | Hydrolase | Lyase | Ligase | |
| 1. | Alcohol dehydrogenase | Glucohexo kinase | Sucrase/Invertase | Aldolase | PEP-Carboxylase |
| 2. | Alcohol dehydrogenase | Glucohexo kinase | Aldolase | PEP-Carboxylase | Invertase |
| 3. | PEP-Carboxylase | Glucohexo kinase | Invertase | Sucrase | Aldolase |
| 4. | Aldolase | Invertase | Aldolase | PEP-Carboxylase | Glucohexo kinase |
Subtopic: Enzymes Classification |
59%
Level 3: 35%-60%
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Match the columns:
1. A = iii, B = i, C = iv, D = ii
2. A - ii, B = i, C = iv, D = iii
3. A = iii, B = i, C = ii, D = iv
4. A = i, B = iv, C = iii, D = ii
| Column-I | Column-II |
| A. Cytochrome oxidase | i. Mg2+ |
| B. Hexokinase | ii. Zn2+ |
| C. Nitrate reductase | iii. Fe2+ and Cu2+ |
| D. Alcohol dehydrogenase | iv. Mo |
2. A - ii, B = i, C = iv, D = iii
3. A = iii, B = i, C = ii, D = iv
4. A = i, B = iv, C = iii, D = ii
Subtopic: Enzyme Cofactors |
72%
Level 2: 60%+
Hints
Which of the following represents an amino-sugar?
1. Ascorbic acid
2. Mannitol
3. Glucuronic acid
4. Glucosamine
1. Ascorbic acid
2. Mannitol
3. Glucuronic acid
4. Glucosamine
Subtopic: Carbohydrates: Introduction | Carbohydrates: Glycosidic Bond & Disaccharide | Carbohydrates: Cellulose, Chitin, Inulin & Agar |
78%
Level 2: 60%+
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