Q. No.Which one of the following statements is wrong?
1. Glycine is a sulphur containing amino acid.
2. Sucrose is a disaccharide.
3. Cellulose is a polysaccharide.
4. Uracil is a pyrimidine.
1. Glycine is a sulphur containing amino acid.
2. Sucrose is a disaccharide.
3. Cellulose is a polysaccharide.
4. Uracil is a pyrimidine.
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Which of the following is the least likely to be involved in stabilizing the three-dimensional folding of most proteins?
| 1. | Ester bonds | 2. | Hydrogen bonds |
| 3. | Electrostatic interaction | 4. | Hydrophobic interaction |
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
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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The rate of enzyme action decreases at higher temperature [after a certain value] because the increased heat
1. changes the pH of the system
2. alters the active site of the enzyme
3. neutralizes the acids and bases in the system
4. increases the concentration of the enzyme
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The living state is synonymous with:
1. Cellular organization
2. Metabolism
3. Consciousness
4. Reproduction
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A glycosidic bond connects :
1. two monosaccharides
2. two amino acids
3. two fatty acids
4. a fatty acid and a glycerol
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