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Q. No.Consider the given two statements:
Assertion (A):
In eukaryotic cells, there is an extensive compartmentalisation of cytoplasm.
Reason (R):
Eukaryotic cells possess an organised nucleus with a nuclear envelope.
1.
Both (A) and (R) are True and (R) correctly explains the (A).
2.
Both (A) and (R) are True but (R) does not correctly explain the(A).
3.
(A) is True; (R) is False
4.
Both (A) and (R) are False
Subtopic: Eukaryotic Cell Orgenelle |
68%
Level 2: 60%+
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Plant and animal cells are different. Identify the correct difference:
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: | Plant cells possess cell walls, plastids and a large central vacuole which are absent in animal cells. |
| II: | Animal cells have centrioles which are absent in almost all plant cells. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Eukaryotic Cell Orgenelle |
90%
Level 1: 80%+
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What is not true regarding the detailed structure of a typical cell membrane?
| 1. | The cell membrane is mainly composed of lipids and proteins. |
| 2. | The major lipids are phospholipids that are arranged in a bilayer. |
| 3. | The lipids are arranged within the membrane with the polar head towards the inner sides and the hydrophobic tails towards the outer part. |
| 4. | In addition to phospholipids, membrane also contains cholesterol. |
Subtopic: Eukaryotic Cell Orgenelle |
90%
Level 1: 80%+
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In human beings, the membrane of the erythrocyte has approximately:
| 1. | 52 per cent protein and 40 per cent lipids. |
| 2. | 40 per cent protein and 52 per cent lipids. |
| 3. | 50 per cent protein and 40 per cent lipids. |
| 4. | 60 per cent protein and 40 per cent lipids. |
Subtopic: Eukaryotic Cell Orgenelle |
90%
Level 1: 80%+
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Sodium ions will be transported to the outside of the cell and potassium ions to the inside of the cell by:
| 1. | simple diffusion | 2. | facilitated diffusion |
| 3. | osmosis | 4. | active transport |
Subtopic: Cell Membrane |
81%
Level 1: 80%+
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How many of the given statements regarding cell wall are true?
1. 2
2. 3
3. 4
4. 5
| I: | A non-living rigid structure called the cell wall forms an outer covering for the plasma membrane of fungi and plants. |
| II: | Cell wall not only gives shape to the cell and protects the cell from mechanical damage and infection, it also helps in cell-to-cell interaction and provides barrier to undesirable macromolecules. |
| III: | Algae have cell wall, made of cellulose, galactans, mannans and minerals like calcium carbonate, while in other plants it consists of cellulose, hemicellulose, pectins and proteins. |
| IV: | The cell wall of a young plant cell, the primary wall is capable of growth. |
| V: | The secondary wall is formed on the outer (towards middle lamella) side of the cell. |
2. 3
3. 4
4. 5
Subtopic: Cell Wall |
66%
Level 2: 60%+
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The middle lamella is a layer of the cell wall complex in plant cells and is composed mainly of:
| 1. | Sodium alginate | 2. | Magnesium silicate |
| 3. | calcium pectate | 4. | Aluminium hydroxide |
Subtopic: Cell Wall |
94%
Level 1: 80%+
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The endomembrane system of a typical eukaryotic cell includes all the following except:
| 1. | Lysosomes | 2. | Golgi Apparatus |
| 3. | Vacuole | 4. | Mitochondria |
Subtopic: Endomembrane System |
87%
Level 1: 80%+
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How many of the given statements are true?
1. 2
2. 3
3. 4
4. 5
| I: | ER divides the intracellular space into two distinct compartments, i.e., luminal (inside ER) and extra luminal (cytoplasm) compartments. |
| II: | RER is frequently observed in the cells actively involved in protein synthesis and secretion. |
| III: | RER are extensive and continuous with the outer membrane of the nucleus. |
| IV: | The smooth endoplasmic reticulum is the major site for synthesis of lipid. |
| V: | In animal cells, lipid-like steroidal hormones are synthesised in SER. |
1. 2
2. 3
3. 4
4. 5
Subtopic: Endomembrane System (Endoplasmic Reticulum) |
82%
Level 1: 80%+
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Acid hydrolases in a eukaryotic cell are located within:
| 1. | Peroxisomes | 2. | Glyoxysomes |
| 3. | Lysosomes | 4. | Carboxysomes |
Subtopic: Lysosomes |
92%
Level 1: 80%+
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