Q. No.When we homogenize any tissues in an acid the acid soluble pool represents
1.
Cytoplasm
2.
Cell membrane
3.
Nucleus
4.
Mitochondria
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What level of protein organization structure explains the 3-D shape of an enzyme?
| 1. primary structure | 2. tertiary structure |
| 3. secondary structure | 4. quaternary structure |
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The graph shown below shows the effect of a certain factor on the rate of a reaction catalyzed by an enzyme. The X-axis would show the said factor and that will be:
| 1. substrate concentration | 2. pH |
| 3. enzyme concentration | 4. temperature |
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If an active-site directed inhibitor is present in the medium, the curve that will represent the progress of the chemical reaction will be shown by the letter:
| 1. D | 2. C |
| 3. A | 4. B |
A change in an amino acid located distantly from the active site of an enzyme can affect the specificity of the enzyme towards its substrate by:
1. making the enzyme unstable
2. cause a relocation of the enzyme within a cell
3. changing the shape of the protein
4. changing the optimum pH and temperature values for the enzyme
An amino acid that is negative charged amongst the following will be:
| 1. Glutamic acid | 2. Lysine |
| 3. Arginine | 4. Histidine |
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The metal ion that acts as a co-factor for both alcohol dehydrogenase and carbonic anhydrase is:
| 1. | Magnesium | 2. | Iron |
| 3. | Zinc | 4. | Nickel |
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Consider the following two statements regarding enzyme action:
I. Co-factors play a crucial role in the catalytic activity of the enzyme.
II. Catalytic activity is reduced when the co-factor is removed from the enzyme.
Of the above statements:
1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. I is correct but II is incorrect
4. I is incorrect but II is correct
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Assuming they all had the same number of carbon atoms, which of the following has the most C-H bonds?
1. an unsaturated fat
2. a polyunsaturated fat
3. a polysaccharide
4. a saturated fat
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An alpha helix is a:
1. primary structure of a protein
2. secondary structure of a protein
3. tertiary structure of a protein
4. quaternary structure of a protein
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