Q. No.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:
| 1. Nucleoside | 2. Nucleotide |
| 3. Nitrogen containing monosaccharide | 4. Glycoprotein |
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The triple helix structure of collagen was discovered by:
1. G. N. Ramachandran
2. Y. S. Subbarao
3. C. V. Raman
4. S. Chandrashekhar
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The living state of an organism is a :
1. non-equlibrium steady state
2. non-equilibrium variable state
3. steady state in perfect equlibrium
4. variable state in perfect quilibrium
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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Given below is the structure of a monosaccharide. The homopolymer of this monosaccharide is used in:
 |
|
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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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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
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 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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