Q. No. Which of the following describes the given graph correctly?
1. Exothermic reaction with energy A in absence of enzyme and B in presence of enzyme.
2. Endothermic reaction with energy A in presence of enzyme and B in absence of enzyme.
3. Exothermic reaction with energy A in presence of enzyme and B in absence of enzyme.
4. Endothermic reaction with energy A in absence of enzyme and B in presence of enzyme.
2. Endothermic reaction with energy A in presence of enzyme and B in absence of enzyme.
3. Exothermic reaction with energy A in presence of enzyme and B in absence of enzyme.
4. Endothermic reaction with energy A in absence of enzyme and B in presence of enzyme.
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Which one of the following statements is correct with reference to enzymes?
1. Apoenzyme = Holoenzyme + Coenzyme
2. Holoenzyme = Apoenzyme + Coenzyme
3. Coenzyme = Apoenzyme + Holoenzyme
4. Holoenzyme = Coenzyme + Co-factor
Which of the following are not polymeric?
| 1. | nucleic acids | 2. | proteins |
| 3. | polysaccharides | 4. | Lipids |
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Cellulose, the most important constituent of plant cell wall, is made of
| 1. | Unbranched chain of glucose molecules linked by α 1, 4 glycosidic bond |
| 2. | Branched chain of glucose molecules linked by β 1, 4 glycosidic bond in straight chain and β 1, 6 glycosidic bond at the site of branching |
| 3. | Unbranched chain of glucose molecules linked by β 1, 4 glycosidic bond |
| 4. | Branched chain of glucose molecules linked by α 1, 6 glycosidic bond at the site of branching |
Which of the following bio-molecules is strictly not a polymer?
| 1. Carbohydrates | 2. Proteins |
| 3. Fats | 4. Nucleic acids |
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Most of the polymerization reactions result from:
| 1. | Redox reactions | 2. | Dehydration synthesis |
| 3. | Hydrolysis | 4. | Isomerization |
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The R group in a proteinaceous amino acid is hydroxymethyl. This amino acid:
1. is not an essential amino acid
2. is not genetically coded for
3. is involved in disulfide linkage
4. is acidic in nature
The given compound:
1. is a storage product in archaea
2. is the source of energy in fungi
3. is present in the cell walls of gram negative bacteria
4. is a structural component of plasma membrane
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Which of the following components is found in least amounts in an average cell?
| 1. | Carbohydrates | 2. | Fats |
| 3. | Nucleic acids | 4. | Proteins |
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