Assertion (A):
The concentration of ions is significantly higher in the cytoplasm than in the vacuole..
Reason (R):
The tonoplast facilitates the transport of a number of ions actively into the vacuole.
1.
Both (A) and (R) are true and (R) is the correct explanation of (A).
2.
Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3.
(A) is true, but (R) is false.
4.
Both (A) and (R) are false.
Subtopic: Vacuole |
69%
From NCERT
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Sorry!! currently, the explanation for the question is not provided. If you need further help, please email at support@neetprep.com with subject: Explanation Missing for Question Id: 361608
| Assertion (A): | Mitochondria are called ‘power houses’ of the cell. |
| Reason (R): | They produce cellular energy in the form of ATP. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true, but (R) is not the correct explanation of (A). |
| 3. | (A) is true, but (R) is false. |
| 4. | (A) is false, but (R) is true. |
Subtopic: Mitochondria |
97%
From NCERT
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| Assertion (A): | Cells vary in their shape, size and functions based on the presence or absence of a membrane bound nucleus and other organelles. |
| Reason (R): | A typical eukaryotic cell consists of a cell membrane, nucleus and cytoplasm. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true, but (R) is not the correct explanation of (A). |
| 3. | (A) is true, but (R) is false. |
| 4. | (A) is false but (R) is true. |
Subtopic: Introduction to Cell |
58%
From NCERT
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| Assertion (A): | Mitochondria, ER are largest organelle in an animal’s cell. |
| Reason (R): | Mitochondria, Chloroplast are semiautonomous cell organelles. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true, but (R) is not the correct explanation of (A). |
| 3. | (A) is true, but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Plastids | Mitochondria | Endomembrane System (Endoplasmic Reticulum) |
80%
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Assertion (A): Cell is the fundamental structural and functional unit of all living organisms.
Reason (R): Anything less than a complete structure of a cell does not ensure independent living
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. Both (A) and (R) are false.
Reason (R): Anything less than a complete structure of a cell does not ensure independent living
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Introduction to Cell |
91%
From NCERT
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| Assertion (A): | In phase contrast microscope, living cells and tissues can be studied without staining them. |
| Reason (R): | Electron beam is used as a source of light in phase contrast microscope. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true, but (R) is not the correct explanation of (A). |
| 3. | (A) is true, but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Introduction to Cell |
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| Assertion (A): | Like mitochondria, the chloroplasts are also double membrane bound. Of the two, the inner chloroplast membrane is relatively less permeable |
| Reason (R): | Porins are present on inner membrane |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true, but (R) is not the correct explanation of (A). |
| 3. | (A) is true, but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Plastids | Mitochondria |
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| Assertion (A): | Cell is the fundamental structural and functional unit of all living organisms. |
| Reason (R): | Because unicellular organisms can show independent existence and perform all metabolic activities. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true, but (R) is not the correct explanation of (A). |
| 3. | (A) is true, but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Introduction to Cell |
65%
From NCERT
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| Assertion (A): | True chromatin is absent in prokaryotes. |
| Reason (R): | Mitosis does not occur in prokaryotes. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true, but (R) is not the correct explanation of (A). |
| 3. | (A) is true, but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Prokaryotic Cell Organisation | Nucleus | Nucleus: Chromosomes |
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| Assertion (A): | Cedar wood oil is used as lens material in light compound microscope. |
| Reason (R): | Refractive index of cedar wood oil is greater than the refractive index of glass. |
Choices for Assertions and reasons:
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true, but (R) is not the correct explanation of (A). |
| 3. | (A) is true, but (R) is false. |
| 4. | (A) is false, but (R) is true. |
Subtopic: Prokaryotic Cell Organisation | Bacterial Staining & Shape |
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