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Q. No.Most bacteria contain plasmids that often encode for traits that are:
1. advantageous but not essential to their bacterial host
2. advantageous and essential to their bacterial host
3. not advantageous but essential to their bacterial host
4. neither advantageous nor essential to their bacterial host
Subtopic: Â Prokaryotic Cell Organisation |Â Details of Prokaryotic Cell Structure |
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Identify the correct statement regarding the cell envelope of a prokaryotic cell:
I. The outermost layer of the cell envelope is called as the glycocalyx which may be present as a loose sheath called the slime layer or a thick and tough capsule.
II. The cell wall determines the shape of the cell and provides a strong structural support to prevent the bacterium from bursting or collapsing.
III. Plasma membrane is selectively permeable in nature and interacts with the outside world.
IV. Bacterial cells can be classified as Gram positive and Gram negative based on the staining properties of their plasma membrane.
I. The outermost layer of the cell envelope is called as the glycocalyx which may be present as a loose sheath called the slime layer or a thick and tough capsule.
II. The cell wall determines the shape of the cell and provides a strong structural support to prevent the bacterium from bursting or collapsing.
III. Plasma membrane is selectively permeable in nature and interacts with the outside world.
IV. Bacterial cells can be classified as Gram positive and Gram negative based on the staining properties of their plasma membrane.
| 1. | All except IV | 2. | Only I and II |
| 3. | I, II, III and IV | 4. | Only II, III and IV |
Subtopic: Â Details of Prokaryotic Cell Structure |
From NCERT
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- 1(current)
Q. No.
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