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Daily Practice

GCSE Science

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3rd February 1991

5 questions · GCSE · 584 questions in this band

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  1. 1
    Cell Division and Stem Cells

    What happens to the DNA before mitosis begins?

  2. 2
    Transport in and out of Cells

    Define osmosis.

  3. 3
    Organisation

    Explain why the rate of an enzyme-controlled reaction decreases sharply above the enzyme's optimum temperature.

  4. 4
    The Digestive System and Enzymes

    Describe the positive result of the Biuret test.

  5. 5
    The Circulatory System and Heart

    Give two adaptations of a red blood cell.

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