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Q. No.What is tonoplast?
1. The membrane surrounding the vacuole
2. A type of plastid involved in pigment synthesis
3. The double membrane of the nucleus
4. The outer membrane of the chloroplast
1. The membrane surrounding the vacuole
2. A type of plastid involved in pigment synthesis
3. The double membrane of the nucleus
4. The outer membrane of the chloroplast
Subtopic: Vacuole |
96%
Level 1: 80%+
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The membrane surrounding the central vacuole in plant cells, which regulates the transport of ions and other substances between cytoplasm and vacuole, is called:
| 1. | Plasmalemma | 2. | Perisome |
| 3. | Tonoplast | 4. | Mesosome |
Subtopic: Vacuole |
96%
Level 1: 80%+
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Match List I with List II
Choose the correct answer from the options given below:
1. A - (III); B - (II); C - (IV); D - (I)
2. A - (I); B - (II); C - (III); D - (IV)
3. A - (III); B - (IV); C - (I); D - (II)
4. A - (III); B - (II); C - (I); D - (IV)
| List I | List II |
| A. Stroma | I. Vacuole membrane |
| B. Plasmodesmata | II. Infoldings in mitochondria |
| C. Tonoplast | III. Fluid inside Chloroplast |
| D. Cristae | IV. Cytoplasmic connections |
1. A - (III); B - (II); C - (IV); D - (I)
2. A - (I); B - (II); C - (III); D - (IV)
3. A - (III); B - (IV); C - (I); D - (II)
4. A - (III); B - (II); C - (I); D - (IV)
Subtopic: Mitochondria | Vacuole |
94%
Level 1: 80%+
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The osmotic expansion of a cell kept in water is chiefly regulated by:
1. Mitochondria
2. Vacuoles
3. Plastids
4. Ribosomes
Subtopic: Vacuole |
93%
Level 1: 80%+
AIPMT - 2014
Hints
Identify the structure on the basis of below given features:
| (a) | Can occupy more than 90% volume of a plant cell |
| (b) | Membrane bound space |
| (c) | Help in excretion in Amoeba |
2. Lysosome
3. Peroxisome
4. Nucleus
Subtopic: Endomembrane System | Vacuole |
91%
Level 1: 80%+
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What makes the vacuoles in plant cells distinct from those in protists like Amoeba?
| 1. | Plant cell vacuoles facilitate osmoregulation, while protist vacuoles store ions. |
| 2. | Plant vacuoles maintain turgor pressure, while protist vacuoles are involved in food storage or osmoregulation. |
| 3. | Vacuoles in plant cells are surrounded by a double membrane, while those in protists have a single membrane. |
| 4. | Vacuoles in protists are larger than those in plant cells. |
Subtopic: Vacuole |
83%
Level 1: 80%+
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Why concentration of number of ions and other materials is higher in vacuole than cytoplasm?
| 1. | Vacuolar membrane is permeable for all substances |
| 2. | Tonoplast facilitates transport against concentration gradient |
| 3. | Vacuole is non-membrane structure |
| 4. | Vacuoles store and synthesize ATP to absorb ions and materials |
Subtopic: Intro to Endomembrane System: Endoplasmic Reticulum | Endomembrane System | Vacuole |
83%
Level 1: 80%+
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Which of the following is true for vacuole
| 1. | It is present in both plants and animals |
| 2. | Central vacuole is present in plant |
| 3. | It occupies 90% volume of the plants |
| 4. | All of these |
Subtopic: Vacuole |
82%
Level 1: 80%+
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