Science

9th -

10thgrade

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Biochemistry Quiz 1 review

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12 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt

    What is homeostasis?

    An organism's ability to regulate internal conditions

    An organism's ability to regulate external conditions

    an organisms ability to adapt to a changing environment over time

    all of the chemical processes that occur within an organism

  • 2. Multiple Choice
    30 seconds
    1 pt

    How do enzymes help maintain homeostasis?

    by producing proteins

    by slowing down bad chemical reactions

    by increasing the rate of chemical reactions

    they are not really that important

  • 3. Multiple Choice
    30 seconds
    1 pt

    why does ice float?

    Water's solid form is more dense than its liquid form because the molecules get closer together as heat is removed

    water's solid form is less dense than its liquid form because the molecules take a crystal lattice structure as heat is removed.

    Its liquid and solid forms have the same density so ice gets suspended in water

    The densities of solid and liquid water are the same and ice stays on top because it is added at the top

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