The ion required as the co-factor for the proteolytic enzyme, carboxypeptidase, is:
1. Zinc
2. Copper
3. Iron
4. Manganese
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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Shown below is a level of structural organization of a protein. Which of the following proteins attains its final form as this structure?
| 1. Keratin | 2. Fibroin |
| 3. Tropo-collagen | 4. Myoglobin |
The following diagram depicts the structure of a:
2. Nucleotide
3. Nitrogen containing monosaccharide
4. Glycoprotein
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