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Q. No.“Omnis cellula-e cellula” means:
1. all cells have a cell membrane
2. only cells are capable of living existence
3. all cells come from cells
4. all cells are capable of dividing
Subtopic: Cell Theory |
89%
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If we compare a typical eukaryotic cell with a typical bacterial cell, it is expected that the size of eukaryotic cell is generally larger than a prokaryotic cell by a factor of:
1. 2
2. 5
3. 10
4. 100
1. 2
2. 5
3. 10
4. 100
Subtopic: Prokaryotic Cell Organisation | Eukaryotic Cell Architecture: Types |
66%
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The terms ‘slime layer’ and ‘capsule’ can be used for which layer of the complex cell envelope of a typical bacterial cell?
1. Glycocalyx
2. Gram positive cell wall
3. Gram negative cell wall
4. Cell membrane
1. Glycocalyx
2. Gram positive cell wall
3. Gram negative cell wall
4. Cell membrane
Subtopic: Prokaryotic Cell Organisation | Details of Prokaryotic Cell Structure |
96%
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Mesosomes in a bacterial cell:
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
| I: | are formed by the extensions of plasma membrane into the cell. |
| II: | help in cell wall formation, DNA replication and distribution to daughter cells. |
| III: | contain pigments in cyanobacteria. |
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic: Prokaryotic Cell Organisation | Details of Prokaryotic Cell Structure |
60%
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Which of the following movement across a cell membrane will require the utilisation of ATP energy?
| 1. | Movement of neutral solutes along the concentration gradient. |
| 2. | Osmosis of water from higher to lower concentration. |
| 3. | Movement of polar molecules along the concentration gradient facilitated by a carrier protein. |
| 4. | Transport of ions against their concentration gradient. |
Subtopic: Cell Membrane |
91%
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Identify the incorrect statement regarding the cell wall of a plant cell:
| 1. | Cell wall helps in cell-to-cell interaction and provides barrier to undesirable macromolecules. |
| 2. | Cell wall consists of cellulose, hemicellulose, pectins and proteins. |
| 3. | The primary wall is capable of growth. |
| 4. | The secondary wall is formed on the outer (towards middle lamella) side of the cell. |
Subtopic: Eukaryotic Cell Orgenelle | Cell Wall |
84%
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Lysosomes are:
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: | vesicular structures not bound by a membrane and formed by the process of packaging in the Golgi apparatus. |
| II: | very rich in almost all types of hydrolytic enzymes optimally active at an alkaline pH. |
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: Lysosomes |
68%
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The vacuole is bound by tonoplast which is:
1. a single membrane.
2. a double layered membrane with pore complexes.
3. a protein rich S layer.
4. freely permeable to all ions.
1. a single membrane.
2. a double layered membrane with pore complexes.
3. a protein rich S layer.
4. freely permeable to all ions.
Subtopic: Vacuole |
91%
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A contractile vacuole will especially be highly useful for osmoregulation in:
1. a unicellular marine water organism.
2. a multicellular marine water organism.
3. a unicellular fresh water organism.
4. a multicellular large fresh water organism.
1. a unicellular marine water organism.
2. a multicellular marine water organism.
3. a unicellular fresh water organism.
4. a multicellular large fresh water organism.
Subtopic: Vacuole |
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Like mitochondria, the chloroplasts:
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 also double membrane bound. |
| II: | also contain small, double-stranded circular DNA molecules and ribosomes. |
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: Plastids | Mitochondria |
86%
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