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 |
73%
From NCERT
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Assertion (A): Lysosomes are called ‘Suicidal bags’.
Reason (R): A large number of hydrolytic enzymes are present in lysosomes
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): A large number of hydrolytic enzymes are present in lysosomes
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 |
75%
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.
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 |
56%
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.
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:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I: | independent existence |
| II: | performing the essential functions of life |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Introduction to Cell |
92%
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. |
2. 1
3. 2
4. 3
Subtopic: Intro to Endomembrane System: Endoplasmic Reticulum | Nucleus | Nucleus: Chromosomes |
67%
From NCERT
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Consider the two statements:
| Statement I: | Ribosomes are non-membrane bound organelles found in all cells. |
| Statement II: | Animal cells contain a non-membrane bound organelle called centrosome which helps in cell division. |
| 1. | Statement I is correct; Statement II is correct |
| 2. | Statement I is correct; Statement II is incorrect |
| 3. | Statement I is incorrect; Statement II is correct |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Centrosomes | Ribosome and Inclusion Bodies |
84%
From NCERT
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Consider the two statements:
| Assertion (A): | In a plant cell, the concentration of a number of ions is significantly higher in the vacuole than in the cytoplasm. |
| Reason (R): | The tonoplast facilitates the transport of a number of ions and other materials against concentration gradients 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 |
79%
From NCERT
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Consider the two statements:
| Statement I: | The axoneme of cilia and flagella usually has nine triplets of radially arranged peripheral microtubules, and a centrally located proteinaceous hub. |
| Statement II: | Each of the peripheral fibrils in a centriole is a doublet and the centriole also has a pair of centrally located microtubules. |
| 1. | Statement I is correct; Statement II is correct |
| 2. | Statement I is correct; Statement II is incorrect |
| 3. | Statement I is incorrect; Statement II is correct |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Cilia & Flagella |
57%
From NCERT
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Consider the given two statements:
| Statement I: | All prokaryotes have a cell wall surrounding the cell membrane except in mycoplasma. |
| Statement II: | No organelles, like the ones in eukaryotes, are found in prokaryotic cells except for ribosomes. |
| 1. | Statement I is correct; Statement II is correct |
| 2. | Statement I is incorrect; Statement II is correct |
| 3. | Statement I is correct; Statement II is incorrect |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Prokaryotic Cell Organisation | Details of Prokaryotic Cell Structure |
82%
From NCERT
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