- 1(current)
Q. No.Amino acids exhibit amphoteric behavior as:
1. They can act both as an acid and as a base.
2. They can act only as an acid but not as a base.
3. They can act only as a base but not an acid.
4. None of the above.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. α-Helix structure
2. β-Pleated sheet structure
3. Both 1 and 2
4. None of the above
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA linkage present in proteins and peptides is:
| 1. |  |
2. |  |
| 3. |  |
4. |  |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biologyα-helix structure of proteins is stabilized by :
| 1. | H-bonds formed between the −SH and C=O group. |
| 2. | H-bonds formed between the −NH and C=O group. |
| 3. | Ionic bonds formed between the −SH and C=O group. |
| 4. | Ionic bonds formed between the −NH and C=O group. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAn insoluble biomolecule in water is-
| 1. | -keratin | 2. | Haemoglobin |
| 3. | Ribonuclease | 4. | Adenine |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe denaturation of proteins indicates:
| 1. | The primary structure of a protein is destroyed and the enzyme loses it's activity. |
| 2. | The primary structure of a protein is destroyed and the enzyme enhances it's activity. |
| 3. | The secondary and tertiary structures of a protein are destroyed and the enzyme loses it's activity. |
| 4. | The secondary and tertiary structures of a protein are destroyed and the enzyme enhances it's activity. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyOne of the essential α-amino acids is:
| 1. | Lysine | 2. | Glycine |
| 3. | Serine | 4. | Proline |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| 1. | Aniline | 2. | Acetanilide |
| 3. | Benzoic acid | 4. | Glycine |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyExamples of globular proteins are:
| (a) | Insulin | (b) | Keratin |
| (c) | Albumin | (d) | Myosin |
Choose the correct option :
1. (a) and (b)
2. (b) and (c)
3. (c) and (d)
4. (a) and (c)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology- 1(current)
Q. No.
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