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Earn 100
Tarun observed a slide of white blood cells under microscope. His teacher asked him to draw the diagram. Select the diagram which should be drawn by Tarun.
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Important Questions on Cell: The Unit of Life
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What is true about genetic material of a prokaryotic cell?
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Many bacteria have small circular DNA outside the genomic DNA. These smaller DNA are called ________.
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Prokaryotic cells are generally ________ and multiply _________ than the eukaryotic cells.
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Select the option which arranges the following steps in a correct sequence as per Gram's staining technique:
Treatment with iodine solution , washing with water , treatment with absolute alcohol/acetone , staining with weak alkaline solution of crystal violet .
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Which of the given statements are correct?
(i) is a Gram bacteria.
(ii) is a Gram bacteria.
(iii) Washing of the Gram's stain in Gram bacteria are due to high lipid content of the cell wall, which gets dissolved in organic solvents like acetone.
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Glycocalyx (mucilage sheath) of a bacterial cell may occur in the form of a loose sheath called _____ or it may be thick and tough called _____.
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Correct sequence of layers of bacterial cell envelope from outward to inward is
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Mesosomes are the infoldings of the cell membrane, which:
(i) Are present in both prokaryotic and eukaryotic cells.
(ii) Help in cell wall formation, replication and respiration.
(iii) Increase the surface area of the plasma membrane.
