Endocrine System Functions Quiz
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Endocrine System Functions Quiz

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@PersonalizedDramaticIrony

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Questions and Answers

What is the function of hormones produced by endocrine glands?

  • Promote hair growth
  • Enhance vision
  • Activate muscle contraction and relaxation (correct)
  • Increase blood pressure

    • Which type of glands do not have ducts for secretion?

  • Mixed glands
  • Endocrine glands (correct)
  • Exocrine glands
  • Sweat glands

    • How do hormones from endocrine glands reach their target organs?

  • By direct contact with the skin
  • Through secretory ducts
  • By diffusion into the blood (correct)
  • Through lymphatic vessels

    • Which type of gland secretes substances directly to a specific compartment or surface?

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

    What is the main role of the nervous system in relation to exocrine glands?

    <p>Controlling glandular secretions</p> Signup and view all the answers

    How do endocrine glands differ from exocrine glands?

    <p>Endocrine glands secrete directly into blood while exocrine secrete to a surface.</p> Signup and view all the answers

    Which term describes glands that serve both endocrine and exocrine functions?

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

    What is the significance of a hormone's half-life?

    <p>Indicates the duration of the hormone's effect in the body</p> Signup and view all the answers

    What characterizes steroid-derived hormones in terms of solubility?

    <p>Insoluble in blood plasma</p> Signup and view all the answers

    How do amine and peptide hormones differ from steroid hormones?

    <p>They are synthesized from amino acids</p> Signup and view all the answers

    In what way do prostaglandins differ from other hormones mentioned?

    <p>They are not found in the plasma membrane</p> Signup and view all the answers

    How do hormones predominantly circulate in the blood to affect target cells?

    <p>Through a second messenger system</p> Signup and view all the answers

    What is the primary factor determining a target cell's response to a hormone?

    <p>Number of receptors for the hormone on the target cell</p> Signup and view all the answers

    How do fat-soluble steroid hormones primarily enter target cells?

    <p>By diffusion through the plasma membrane</p> Signup and view all the answers

    In what way can a hormone increase enzyme activity by altering the enzyme's shape and function?

    <p>By allosteric modulation of the enzyme</p> Signup and view all the answers

    Which factor plays a crucial role in determining the extent of activation of a target cell by a hormone?

    <p>The strength of the union between hormone and receptor</p> Signup and view all the answers

    Where do hormone receptors mainly exist in target cells?

    <p>On the plasma membrane</p> Signup and view all the answers

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