Physiological Mechanisms and Subdisciplines Quiz
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Questions and Answers

Why does shivering occur when a person is cold?

  • To provide entertainment
  • To regulate and increase body temperature (correct)
  • To cool down the body temperature
  • To signal discomfort to the brain
  • What is the main focus of physiology?

  • Exploring the chemical composition of organisms
  • Studying the structure of the body
  • Analyzing the genetic makeup of humans
  • Understanding the functions of living things (correct)
  • What is the importance of homeostasis to organisms?

  • It leads to unpredictable changes in the body
  • It disrupts the normal functions of the body
  • It speeds up physiological processes
  • It helps maintain a stable internal environment (correct)
  • Which term refers to the ability of living organisms to keep their internal environment stable?

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

    What do physiologists primarily study?

    <p>The functions of living organisms</p> Signup and view all the answers

    In physiology, what is closely related to the study of anatomy?

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

    What is the main focus of cell and molecular physiologists?

    <p>Researching molecular genetics and signal transduction at the cellular level</p> Signup and view all the answers

    Which subdiscipline of physiology investigates how cells and tissues interact to carry out specific responsibilities within the whole animal?

    <p>Systems physiologists</p> Signup and view all the answers

    What do ecological/environmental physiologists primarily study?

    <p>How physiological properties of an animal influence species distribution/abundance</p> Signup and view all the answers

    Which category of physiologists focuses on understanding physiological processes across multiple physiological systems?

    <p>Integrative physiologists</p> Signup and view all the answers

    What is the primary concern of evolutionary physiologists?

    <p>How specific physiological traits arise within lineages over generations</p> Signup and view all the answers

    At what level does a molecule in the membrane that encloses a cell exist?

    <p>Cellular Level</p> Signup and view all the answers

    Which of the following is NOT a component of the feedback system that maintains homeostasis?

    <p>An external factor that triggers the response</p> Signup and view all the answers

    Which statement best describes the concept of a set point in homeostasis?

    <p>It is the optimal level at which a variable is maintained.</p> Signup and view all the answers

    In the example of the husband and wife sharing a bed, their actions represent which type of feedback loop?

    <p>Positive feedback</p> Signup and view all the answers

    Which of the following is NOT a function of the nervous and endocrine systems in maintaining homeostasis?

    <p>Providing energy for the feedback mechanisms</p> Signup and view all the answers

    Which of the following statements accurately describes the relationship between cells, body systems, and homeostasis?

    <p>Cells are the basic units that make up body systems, and homeostasis ensures their survival.</p> Signup and view all the answers

    In the context of physiological processes, what is the primary role of positive feedback loops?

    <p>To amplify and reinforce a specific change</p> Signup and view all the answers

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