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Q. No.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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Tonoplast is:
1. the internal membrane in chloroplast
2. membrane of vacuole
3. membrane of lysosomes
4. membrane of glyoxysomes
1. the internal membrane in chloroplast
2. membrane of vacuole
3. membrane of lysosomes
4. membrane of glyoxysomes
Subtopic: Vacuole |
90%
Level 1: 80%+
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What type of plastids store oils and fats in plant cells?
| 1. | Chromoplasts | 2. | Amyloplasts |
| 3. | Elaioplasts | 4. | Aleuroplasts |
Subtopic: Plastids |
88%
Level 1: 80%+
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Which organelle must be specifically stained with a vital dye such as Janus green so that it can be seen under a microscope?
| 1. | SER | 2. | Mitochondria |
| 3. | Chloroplasts | 4. | Vacuoles |
Subtopic: Mitochondria |
82%
Level 1: 80%+
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An elaborate network of filamentous proteinaceous structures consisting of microtubules, microfilaments and intermediate filaments present in the cytoplasm of eukaryotic cells is collectively referred to as the:
| 1. | cytoskeleton | 2. | MTOC |
| 3. | Contractile elements | 4. | vimentin |
Subtopic: Cytoskeleton |
94%
Level 1: 80%+
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