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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| Assertion (A): | Ribosomes are known as RNP particles. |
| Reason (R): | Ribosomes are made of rRNA and proteins. |
| 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: Ribosome and Inclusion Bodies |
75%
From NCERT
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| Assertion (A): | Lysosomes are called ‘Suicidal bags’. |
| Reason (R): | Lysosomes are called ‘Suicidal bags’. |
| 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: Lysosomes |
76%
From NCERT
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| Assertion (A): | Basal bodies are formed from centrioles. |
| Reason (R): | Both basal bodies and centrioles have 9+2 structural organization. |
| 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: Cytoskeleton | Cilia & Flagella |
59%
From NCERT
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| Assertion (A): | Mitochondria is known as power house of cell. |
| Reason (R): | ATP production takes place here. |
| 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: Mitochondria |
95%
From NCERT
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Unicellular organisms are capable of:
| I: | independent existence |
| II: | performing the essential functions of life |
| 1. | Only I is correct |
| 2. | Only II is correct |
| 3. | Both I and II are correct |
| 4. | Both I and II are incorrect |
Subtopic: Introduction to Cell |
93%
From NCERT
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How many of the given statements regarding a eukaryotic cell are correct?
1. 0
2. 1
3. 2
4. 3
| I: | The outer nuclear membrane usually remains continuous with the endoplasmic reticulum but does not bear ribosomes on it. |
| II: | Nucleolus is a single membrane-bound structure. |
| III: | Chromatin contains DNA and some acidic proteins called histones, but does not contain non-histone proteins and RNA. |
| IV: | Every chromosome essentially has a primary constriction or the centromere on the sides of which disc-shaped structures called kinetochores are present. |
1. 0
2. 1
3. 2
4. 3
Subtopic: Intro to Endomembrane System: Endoplasmic Reticulum | Nucleus | Nucleus: Chromosomes |
66%
From NCERT
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