- 1(current)
Q. No.Adult human haemoglobin consists of:
1. 2 subunits (β, β)
2. 2 subunits (α, α)
3. 4 subunits (2α, 2β)
4. 3 subunits (2α, 1β)
Subtopic: Structural Organisation of Proteins |
92%
From NCERT
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Long protein chain folded upon itself like a hollow woolen ball and gives us a 3-dimensional view of a protein belongs to
| 1. | Primary structure | 2. | Secondary structure |
| 3. | Tertiary structure | 4. | Quaternary structure |
Subtopic: Structural Organisation of Proteins |
87%
From NCERT
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Which of the following statements is not correct about proteins?
| 1. | The first amino acid of all the proteins is also known as N-terminal amino acid |
| 2. | In proteins, only right handed helics are observed |
| 3. | α - helics are tertiary structures of proteins |
| 4. | Primary structure of a protein dictates its secondary and tertiary conformations |
Subtopic: Structural Organisation of Proteins |
78%
From NCERT
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Identify the incorrect statement regarding the structure of proteins:
| 1. | They are heteropolymers containing strings of amino acids. |
| 2. | The first amino acid in the primary structure is the N-terminus amino acid |
| 3. | Only left helices are observed in proteins |
| 4. | Tertiary structure is absolutely essential for many biologic functions of the proteins |
Subtopic: Structural Organisation of Proteins |
83%
From NCERT
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Which of the following is not the function of protein
| 1. | Act as hormones |
| 2. | act as enzymes |
| 3. | act as genetic material |
| 4. | fight against infections |
Subtopic: Structural Organisation of Proteins |
81%
From NCERT
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G.N. Ramachandran discovered the structure of collagen which is a/an:
1. Alpha helix
2. Beta pleated sheet
3. Triple helix
4. Icosahederon
Subtopic: Structural Organisation of Proteins |
52%
From NCERT
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The quaternary structure of a protein:
| 1. | Consists of 4 subunits - hence the name quaternary |
| 2. | Is unrelated to the function of the protein |
| 3. | Both (a) and (b) |
| 4. | Depends on the 1° structure of subunits |
Subtopic: Structural Organisation of Proteins |
From NCERT
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- 1(current)
Q. No.
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