Science

9th -

10thgrade

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Common Assessment Exam Practice

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30 questions

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  • 1. Multiple Choice
    2 minutes
    1 pt
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    Rosalind Franklin took an X-ray photograph that revealed the structure of DNA. What is the structure (shape) of DNA?

    single stranded with 4 nitrogenous bases

    ladder shaped, containing 5 nitrogenous bases

    triple stranded, with bonds between each strand

    double stranded and twisted, with bases bonded to other bases

  • 2. Multiple Choice
    2 minutes
    1 pt
    Image

    In the Enzyme-Substrate Complex shown, what is represented by Y?

    Substrate

    Enzyme

    Active Site

    Product

  • 3. Multiple Choice
    2 minutes
    1 pt
    Image

    In the Enzyme-Substrate Complex shown, what is represented by X?

    Substrate

    Enzyme

    Active Site

    Product

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