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: Â 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: Â Intro to Endomembrane System: Endoplasmic Reticulum |Â Nucleus |Â Nucleus: Chromosomes |
 66%
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: Â Centrosomes |Â Ribosome and Inclusion Bodies |
 85%
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: Â Vacuole |
 81%
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: Â Cilia & Flagella |
 56%
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: Â Prokaryotic Cell Organisation |Â Details of Prokaryotic Cell Structure |
 83%
From NCERT
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The membranes of which of the following cell organelle are not included in the endomembrane system of a eukaryotic cell?
1. Vacuole
2. Lysosome
3. Plastid
4. Endoplasmic reticulum
1. Vacuole
2. Lysosome
3. Plastid
4. Endoplasmic reticulum
Subtopic: Â Endomembrane System |
 91%
From NCERT
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Consider the two statements:
| Assertion (A): | The Golgi apparatus, also known as the Golgi body, is like a post office. |
| Reason (R): | The Golgi apparatus is an important site for the formation of glycoproteins and glycolipids. |
| 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: Â Golgi Apparatus |
 58%
From NCERT
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Lysosomes:
| Statement I: | are membrane bound vesicular structures formed in the rough endoplasmic reticulum. |
| Statement II: | are very rich in almost all types of hydrolytic enzymes optimally active at the basic pH. |
| 1. | Statement I is incorrect; Statement II is incorrect |
| 2. | Statement I is incorrect; Statement II is correct |
| 3. | Statement I is correct; Statement II is incorrect |
| 4. | Statement I is correct; Statement II is correct |
Subtopic: Â Endomembrane System (Lysosomes) |
 63%
From NCERT
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How many of the given statements are correct?
1. 2
2. 3
3. 4
4. 5
| I: | The major lipids in cell membrane are phospholipids that are arranged in a bilayer. |
| II: | The ability of lipids and carbohydrates to move laterally within the membrane is measured by its fluidity. |
| III: | In addition to phospholipids, the animal cell membrane also contains cholesterol. |
| IV: | Algae have a cell wall, made of cellulose, galactans, mannans, and minerals like calcium carbonate. |
| V: | In plants other than algae, cell membrane consists of cellulose, hemicellulose, pectins and proteins |
1. 2
2. 3
3. 4
4. 5
Subtopic: Â Cell Wall |Â Cell Membrane |
 53%
From NCERT
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