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Cells

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    IGCSE Biology Chapter 1(Cells)
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  • What is that solution which surrounds the vacuoles in a plant cell called?
    Cell sap
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  • What is the cell sap in a plant cell made of?
    Sugars and order substances. (Cell sap is a solution made of sugars and other substances)
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  • How does a vacuole help a plant cell to be kept in shape ?
    The vacuole presses outward on the rest of the cell (and helps it to stay in shape)
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  • Are plant vacuoles or animal vesicles bigger ?
    Plant vacuoles are much bigger.
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  • What are animal ‘vacuoles’ called ?
    Vesicles
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  • What are animal vesicles made of ?
    Water or nutrients.
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  • What two parts of the cells are found in plant cells but not animal cells ?
    1- cell wall & 2- chloroplasts
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  • What is the function of chlorophyll?
    Chlorophyll absorbs energy from the sunlight to be used by the plant to make food.
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  • What is a substance found in chloroplasts that is similar to starch, but that is not starch and is pressent in animals?
    Glycogen
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  • What is a nucleus?
    A nucleus is where all the genetic of organism is kept.
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  • In what way does the nucleus help the cell ?
    The nucleus helps the cell make the right sorts of proteins.
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  • In what part of the nucleus is the genetic information of the organism kept ?
    In the chromosomes.
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  • Are plant cells often regular in shape ?
    Yes
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  • Are animal cells often regular in shape ?
    No, they are often irregular in shape.
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  • Are animal cells often regular shape?
    No
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