1. The major functional parts of the cell are (i) Plasma membrane (ii) Cytoplasm (iii) Nucleus.

    The major functional parts of the cell are
    (i) Plasma membrane
    (ii) Cytoplasm
    (iii) Nucleus.

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  2. Staining is done to make the nucleus cell wall and all membrane visible as they take up stain.

    Staining is done to make the nucleus cell wall and all membrane visible as they take up stain.

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  3. (i) The cheek cell is an animal cell, whereas the onion peel cell is a plant cell. (ii) The cell wall is absent in the cheek cell, but it is present in the onion peel cell. (iii) A large central vacuole is seen in the onion peel cell, whereas such a vacuole is absent in the cheek cell.

    (i) The cheek cell is an animal cell, whereas the onion peel cell is a plant cell.
    (ii) The cell wall is absent in the cheek cell, but it is present in the onion peel cell.
    (iii) A large central vacuole is seen in the onion peel cell, whereas such a vacuole is absent in the cheek cell.

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