- 1(current)
Q. No.Consider the given two statements:
Statement 1: A protein is a heteropolymer.
Statement 2: There are 20 types of proteinogenic amino acids and they are linked by peptide bonds to form polypeptides.
1. Only Statement 1 is correct
2. Only Statement 2 is correct
3. Both Statement 1 and Statement 2 are correct
4. Both Statement 1 and Statement 2 are incorrect
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| I. | GLUT-4 | Enables glucose transport out of the cells |
| II. | Collagen | Most abundant protein in animal world |
| III. | RuBisCO | Most abundant protein in the whole of the biosphere |
| 1. | Only I | 2. | Only I and II |
| 3. | Only I and III | 4. | Only II and III |
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The first amino acid in the primary structure of a protein is termed as:
| 1. | C – terminus amino acid | 2. | N – terminus amino acid |
| 3. | An imino acid | 4. | Alpha amino acid |
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Quaternary structure is seen in proteins that:
1. act as biochemical catalysts
2. are embedded within the plasma membrane
3. are assembly of more than one subunits
4. do not have any structural role in the cell
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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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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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I. The level of protein structure organization that provides the positional information of amino acids in a protein is called as the primary structure.
II. Only right handed helices are observed in proteins seen in living organisms.
III. Tertiary structure is absolutely necessary for the many biological activities of proteins.
| 1. Only I and II | 2. Only I and III |
| 3. Only II and III | 4. I, II and III |
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What level of protein structure is shown in the given diagram?
| 1. Primary | 2. Secondary |
| 3. Tertiary | 4. Quaternary |
- 1(current)
Q. No.
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