In competitive inhibition, if the concentration of the substrate is increased :
1. the rate of the reaction is increased
2. the rate of the reaction is decreased
3. the rate of the reaction is not affected
4. the reaction direction is reversed
1. the rate of the reaction is increased
2. the rate of the reaction is decreased
3. the rate of the reaction is not affected
4. the reaction direction is reversed
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The ion required as the co-factor for the proteolytic enzyme, carboxypeptidase, is:
1. Zinc
2. Copper
3. Iron
4. Manganese
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The inhibition of succinic dehydrogenase by malonate is an example of:
1. Non-competitive reversible inhibition
2. Non-competitive irreversible inhibition
3. Competitive inhibition
4. Allosteric inhibition
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The enzymes that catalyse removal of groups from substrates by mechanisms other than hydrolysis leaving double bonds are called as:
| 1. | Oxidoreductases | 2. | Hydrolases |
| 3. | Ligases | 4. | Lyases |
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Consider the following enzymes:
I. Catalase
II. Peroxidase
III. Carboxypeptidase
Which of these enzymes require haem as a co-factor for their activity?
| 1. | I only | 2. | I and II only |
| 3. | II and III only | 4. | I, II and III |
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The property of the water molecule that is most important for the maintenance of homeostasis in living organisms is:
1. High latent heat of vaporization
2. High latent heat of fusion
3. High specific heat
4. Liquid form more dense than solid form
Chitin, a complex polysaccharide, is found in:
| 1. | Plant cell wall |
| 2. | The exoskeleton of arthropods and cell walls of most fungi |
| 3. | Bacterial cell wall |
| 4. | Cartilage and other connective tissues |
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Given below is the structure of a monosaccharide. The homopolymer of this monosaccharide is used in:
 |
|
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Given below is the structure of a lipid. The excess of this compound in human blood can lead to:
| 1. | Alzheimer’s disease | 2. | Phenylketonuria |
| 3. | Atherosclerosis | 4. | Rheumatoid arthritis |
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