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Q. No.Which of the following is the correct structure of a monomer present in the structure of a DNA molecule?
1.
2.
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3.
4.
Subtopic: Nucleic Acid: Nucleotides | The DNA |
72%
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Consider the given two statements:
| Statement I: | Secondary metabolites derived from plant, fungal and microbial cells do not have a use in human welfare. |
| Statement II: | We do not, at the moment, understand the role or functions of all the secondary metabolites in host organisms. |
| 1. | Both Statement I and Statement II are correct and Statement II correctly explains Statement I |
| 2. | Both Statement I and Statement II are correct but Statement II does not correctly explain Statement I |
| 3. | Statement I is correct but Statement II is incorrect |
| 4. | Statement I is incorrect but Statement II is correct |
Subtopic: Primary & Secondary Metabolites |
80%
From NCERT
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Consider the given two statements:
| Statement I: | Lipids are a part of acid insoluble fraction or the macromolecular fraction during chemical analysis of a cell. |
| Statement II: | Lipids have a molecular weight running in thousands of Dalton. |
| 1. | Both Statement I and Statement II are correct and Statement II correctly explains Statement I |
| 2. | Both Statement I and Statement II are correct but Statement II does not correctly explain Statement I |
| 3. | Statement I is correct but Statement II is incorrect |
| 4. | Statement I is incorrect but Statement II is correct |
Subtopic: Introduction |
76%
From NCERT
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If we consider the average composition of cells the correct descending order of the components will be:
1. Proteins → Nucleic acids → Carbohydrates → Lipids
2. Proteins → Carbohydrates → Nucleic acids → Lipids
3. Lipids → Carbohydrates → Nucleic acids → Proteins
4. Carbohydrates → Proteins → Lipids → Nucleic acids
Subtopic: Introduction |
60%
From NCERT
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Consider the given two statements:
| Statement I: | A protein is a heteropolymer. |
| Statement II: |
There are 20 types of proteinogenic amino acids and they are linked by peptide bonds to form polypeptides.
1. Only Statement I is correct
2. Only Statement II is correct
3. Both Statement I and Statement II are correct
4. Both Statement I and Statement II are incorrect
Subtopic: Proteins |
87%
From NCERT
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Consider the given two statements:
| Statement 1: | Certain amino acids are essential for our health. |
| Statement 2: | Only such amino acids are used to make proteins in our body according to our own genetic code. |
| 1. | Both Statement 1 and Statement 2 are correct and Statement 2 correctly explains Statement 1 |
| 2. | Both Statement 1 and Statement 2 are correct but Statement 2 does not correctly explain Statement 1 |
| 3. | Statement 1 is correct but Statement 2 is incorrect |
| 4. | Statement 1 is incorrect but Statement 2 is correct |
Subtopic: Amino Acids |
63%
From NCERT
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Identify the correctly matched pair/s:
| 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 |
Subtopic: Proteins |
86%
From NCERT
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Consider the given two statements:
Statement 1: The right end of the glycogen molecule is called the reducing end and the left end is called the non-reducing end.
Statement 2: Glycogen is a homopolymer of alpha glucose.
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
Statement 1: The right end of the glycogen molecule is called the reducing end and the left end is called the non-reducing end.
Statement 2: Glycogen is a homopolymer of alpha glucose.
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
Subtopic: Carbohydrates: Starch & Glycogen |
76%
From NCERT
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Consider the given two statements:
| Statement I: | Iodine test can detect the presence of starch but not of cellulose in a given sample. |
| Statement II: | Starch forms helical secondary structure and can hold iodine molecules while cellulose does not contain complex helices and hence cannot hold iodine. |
| 1. | Both Statement I and Statement II are correct and Statement II correctly explains Statement I |
| 2. | Both Statement I and Statement II are correct but Statement II does not correctly explain Statement I |
| 3. | Statement I is correct but Statement II is incorrect |
| 4. | Statement I is incorrect but Statement II is correct |
Subtopic: Carbohydrates | Carbohydrates: Starch & Glycogen |
88%
From NCERT
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The true macromolecular fraction of any living tissue or cell includes all the following biomolecules except:
| 1. | Nucleic acids | 2. | Polysaccharides |
| 3. | Lipids | 4. | Proteins |
Subtopic: Introduction |
84%
From NCERT
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