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Biology

9th -

10thgrade

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BIO 9A - Biomolecule Functions

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  • 1. Multiple Choice
    5 minutes
    1 pt

    The differences between two molecules include the type of sugar that forms a section of the molecules and the identity of one of the four nitrogenous bases that make up another section of the molecules. These two molecules are —

    proteins

    lipids

    nucleic acids

    complex carbohydrates

  • 2. Multiple Choice
    5 minutes
    1 pt
    Image

    The complex carbohydrates pictured below are made by linking molecules of glucose.


    In all three complex carbohydrates, the subunits of glucose are bonded together differently. Because they have different structures, they most likely —

    contain different chemical elements

    form different proteins

    carry different nucleotides

    perform different functions

  • 3. Multiple Choice
    5 minutes
    1 pt

    An advertisement for a health supplement for dogs claims to build lean muscle and strengthen tendons and ligaments, as well as provide energy. Which two biomolecules must the supplement contain to provide these benefits?

    Carbohydrates and lipids

    Proteins and carbohydrates

    Nucleic acids and carbohydrates

    Lipids and nucleic acids

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