Levels of Organization and Homeostasis Quiz A AND P UNIT 1
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Questions and Answers

Which one of these is the correct order of the major levels of organization in the body, from simplest to most complex?

  • Atoms, molecules, organelles, cells, tissues, organs, organ systems, human organism (correct)
  • Atoms, organelles, cells, tissues, organs, molecules, organ systems, human organism
  • Human organism, organ systems, organs, tissues, cells, organelles, molecules, atoms
  • Human organism, organ systems, organs, tissues, cells, organelles, atoms, molecules

    • Which one of these best defines homeostasis?

  • A constantly changing internal environment
  • A relatively constant internal environment even if the external environment changes (correct)
  • A stable external environment
  • An unchanging internal environment

    • Which one of these best describes a positive feedback loop?

  • A loop that amplifies the result of an action to make it occur more quickly (correct)
  • A loop that reverses the effects of a stimulus
  • A loop that maintains stability and balance in the body
  • A loop that responds to an external stimulus

    • Which one of these components of a negative feedback loop detects changes in the internal environment?

    <p>Receptor</p> Signup and view all the answers

    Which one of these components of a negative feedback loop receives signals from the receptor and determines the appropriate response?

    <p>Control center</p> Signup and view all the answers

    Which one of these components of a negative feedback loop carries out the response to restore homeostasis?

    <p>Effector</p> Signup and view all the answers

    Study Notes

    Levels of Organization

    • The correct order of the major levels of organization in the body, from simplest to most complex, is: cell, tissue, organ, organ system, organism

    Homeostasis

    • Homeostasis is the ability of the body to maintain a stable internal environment despite changes in the external environment

    Positive Feedback Loop

    • A positive feedback loop is a self-reinforcing cycle where the response to a stimulus enhances or amplifies the original stimulus, leading to an exponential increase in the response

    Negative Feedback Loop Components

    Receptor

    • The receptor detects changes in the internal environment, monitoring factors such as temperature, pH, or blood glucose levels

    Control Center

    • The control center receives signals from the receptor and determines the appropriate response to restore homeostasis

    Effector

    • The effector carries out the response to restore homeostasis, bringing the internal environment back to a stable state

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    Description

    Test your knowledge of the levels of organization in the human body and the concept of homeostasis with this quiz. Explore the major components of the body, from atoms to organ systems, and learn about the importance of maintaining a stable internal environment. Discover how negative feedback loops regulate bodily functions and challenge yourself by identifying examples of positive feedback loops.

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