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Q. No.Which of the following is wrong with respect to 'biomolecules'?
Choose the correct answer from the options given below:
1. D & E only
2. A & D only
3. A, B & D only
4. B, E & C only
| A. | Cellulose and starch can hold I2 due to formation of helical secondary structures |
| B. | Proteins transport nutrient across cell membrane and fight infectious organisms |
| C. | At high temperature, enzymes get damaged while inorganic catalysts work efficiently |
| D. | In animal tissue, different drugs, pigments, essential oil, magnesium, O2 compounds are noticed |
| E. | DNA and RNA have three chemically distinct components - heterocyclic, monosaccharides and phosphates. |
1. D & E only
2. A & D only
3. A, B & D only
4. B, E & C only
Subtopic: Proteins | Carbohydrates | Enzymes |
54%
From NCERT
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| A. | Release of products of the reaction |
| B. | Binding of substrate to the active site of the enzyme |
| C. | Formation of enzyme-substrate complex |
| D. | Alteration in the shape of the enzyme |
| E. | Enzyme free to bind another molecule of substrate |
1. B > C > D > A > E
2. B > D > C > A > E
3. B > D > A > E > C
4. B > E > D > C > A
Subtopic: Enzymes | Enzyme Catalysis |
55%
From NCERT
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The number of correct statements from the given statements are:
1. 2
2. 3
3. 4
4. 5
| I: | Almost all enzymes are proteins. |
| II: | Some nucleic acids can behave like enzymes. |
| III: | No enzyme in living organisms can function above 40 °C. |
| IV: | Enzymes are the reason that chemicals react with each other. |
| V: | Enzymes are not sensitive to pH in their environment. |
2. 3
3. 4
4. 5
Subtopic: Enzymes | Enzyme Catalysis | Factors Affecting Enzyme Catalysis Reaction |
From NCERT
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Q. No.
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