Biochemistry Lec 9: Hormones and Their Functions
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Questions and Answers

What is the defining feature of a target cell in relation to hormone response?

  • The ability to selectively bind a given hormone to its receptor. (correct)
  • The proximity of the target cell to the hormone source (dilution effect).
  • The conversion of inactive or sub-optimally active forms of the hormone into the fully active form.
  • The rate of synthesis and secretion of the hormones.

    • What determines the response of a target cell to a hormone?

  • The number, relative activity, and state of occupancy of the specific receptors on the plasma membrane or in the cytoplasm or nucleus. (correct)
  • The rate of clearance from plasma by other tissues or by digestion, metabolism, or excretion.
  • The proximity of the target cell to the hormone source (dilution effect).
  • The rate of synthesis and secretion of the hormones.

    • What is a common characteristic of hormones and enzymes?

  • Structurally, hormones are not always proteins.
  • Produced in an organ other than that which they ultimately perform their action.
  • Act as body catalysts. (correct)
  • Hormones are secreted in blood prior to use.

    • What distinguishes hormones from enzymes?

    <p>Hormones are produced in an organ other than that which they ultimately perform their action.</p> Signup and view all the answers

    What does the endocrine system regulate?

    <p>All biological processes in the body from conception through adulthood.</p> Signup and view all the answers

    What is the main function of hormones?

    <p>Coordinate metabolic activities</p> Signup and view all the answers

    Where are hormones released in small amounts from?

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

    What term is used for glands that produce chemical substances directly secreted into the bloodstream?

    <p>Endocrine glands</p> Signup and view all the answers

    How do most hormones circulate in the body?

    <p>Through the bloodstream</p> Signup and view all the answers

    What can treating the production of hormones help with in the body?

    <p>Treating hormonal disorders</p> Signup and view all the answers

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