1. Unstriated muscle: (i) The cells of unstriated muscles are long, pointed at the ends and uninucleated. (ii) These muscles are present in alimentary canal, blood vessels, iris of the eye, ureter and bronchi. Cardiac muscle: (i) The cells of cardiac muscles are cylindrical, branched and uninucleated.Read more

    Unstriated muscle: (i) The cells of unstriated muscles are long, pointed at the ends and uninucleated.
    (ii) These muscles are present in alimentary canal, blood vessels, iris of the eye, ureter and bronchi.
    Cardiac muscle: (i) The cells of cardiac muscles are cylindrical, branched and
    uninucleated. (ii) Cardiac muscles are present in the heart (i.e. in the wall of heart).

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  2. Differences between striated, unstriated and cardiac muscles are as follows: Striated muscle: (i) The cells of striated muscles are long, cylindrical unbranched and multinucleated.(ii) Striated muscles are present in our limbs and join the bones.

    Differences between striated, unstriated and cardiac muscles are as follows:
    Striated muscle: (i) The cells of striated muscles are long, cylindrical unbranched
    and multinucleated.(ii) Striated muscles are present in our limbs and join the bones.

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  3. Cardiac muscle is present in the heart. It contracts and relaxes rapidly and continuously with a rhythm, but it never gets fatigued

    Cardiac muscle is present in the heart. It contracts and relaxes rapidly and continuously with a rhythm, but it never gets fatigued

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  4. The important functions of stomata are: (i) Exchange of gases with atmosphere, e.g., entry of carbon dioxide for photosynthesis and of oxygen for respiration. (ii) Transpiration, i.e., loss of water in the form of water vapour.

    The important functions of stomata are:
    (i) Exchange of gases with atmosphere, e.g., entry of carbon dioxide for photosynthesis and of oxygen for respiration.
    (ii) Transpiration, i.e., loss of water in the form of water vapour.

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  5. The differences between cell walls of parenchyma, collenchyma and sclerenchyma are given in following table: Parenchyma: (1) Cell wall is primary. (ii) Cell walls thin and made up of cellulose. Collenchyma:(1) Cell wall is primary. (ii) Cell wall has localised thickening of cellulose. Sclerenchyma:Read more

    The differences between cell walls of parenchyma, collenchyma and sclerenchyma are given in following table:
    Parenchyma: (1) Cell wall is primary. (ii) Cell walls thin and made up of cellulose.
    Collenchyma:(1) Cell wall is primary. (ii) Cell wall has localised thickening of cellulose.
    Sclerenchyma: (i) Cell wall is secondary. (ii) Cell wall is very thick obliterating internal cellular space. Cell wall is thickened due to

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