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Q. No.When kept in a very dilute solution, all the following cells can withstand pressure exerted by water entering them without bursting except:
1.
Plant cell
2.
Bacterial cell
3.
Fungal cell
4.
Red blood cells
Subtopic: Cell Organisation |
72%
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Chloroplasts, in addition to chlorophyll, also contain various yellow or orange pigments called as:
1. Melanins
2. Carotenoids
3. Retinols
4. Terpenes
1. Melanins
2. Carotenoids
3. Retinols
4. Terpenes
Subtopic: Plastids |
89%
From NCERT
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The chlorophyll in photosynthetic bacteria is associated with:
1. Infoldings of cell membrane
2. Extensions of cell wall
3. Plastids
4. Plasmids
1. Infoldings of cell membrane
2. Extensions of cell wall
3. Plastids
4. Plasmids
Subtopic: Details of Prokaryotic Cell Structure |
61%
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| Assertion (A): | Plant cells are capable of forming a spindle apparatus during cell division. |
| Reason (R): | All plant cells have centrioles. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | Both (A) and (R) are True and (R) does not correctly explain (A). |
| 3. | (A) is True; (R) is False |
| 4. | Both (A) and (R) are False |
Subtopic: Centrosomes |
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Vacuoles in animal cells:
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: | are small in size, if present |
| II: | are bound by a double membrane |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Vacuole |
60%
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Cell membrane proteins can be classified as integral and peripheral on the basis of
| 1. | Their size | 2. | Their function |
| 3. | Ease of extraction | 4. | Chemical nature |
Subtopic: Cell Membrane |
84%
From NCERT
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Name the German botanist who, for the first time, stated that all plant tissues are composed of individual cells:
1. Theodor Schwann
2. Rudolf Virchow
3. Matthias Schleiden
4. Alfred Russel Wallace
2. Rudolf Virchow
3. Matthias Schleiden
4. Alfred Russel Wallace
Subtopic: Cell Theory |
85%
From NCERT
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Which of the following cellular structures will not be found in E. coli?
1. Plasma membrane
2. Ribosome
3. Cell wall
4. Nuclear envelope
1. Plasma membrane
2. Ribosome
3. Cell wall
4. Nuclear envelope
Subtopic: Prokaryotic Cell Organisation |
88%
From NCERT
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The channels that connect the adjacent plant cells through their walls are called:
| 1. | Plasmodesmata | 2. | Desmosomes |
| 3. | Gap junctions | 4. | Intercalated discs |
Subtopic: Cell Wall |
93%
From NCERT
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Carotenoid pigments like carotene and xanthophylls:
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: | are present on chromoplasts. |
| II: | are not lipid soluble. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Plastids |
68%
From NCERT
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