Hormone Regulation and Sensitivity Quiz
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Questions and Answers

Where does hormone synthesis take place for steroid hormones?

  • Golgi apparatus
  • Endoplasmic reticulum
  • Nucleus
  • Mitochondria (correct)

    • Which type of hormone binds to a cell surface receptor to activate downstream signaling?

  • Autocrine hormone
  • Steroid hormone
  • Paracrine hormone (correct)
  • Endocrine hormone

    • What is the main function of the complex formed by steroid hormones and intracellular receptors?

  • Inhibit cellular metabolism
  • Initiate apoptosis
  • Control gene expression (correct)
  • Promote cell division

    • Which type of receptor is involved in activating the Jak/STAT signaling pathway?

    <p>Intracellular receptor</p> Signup and view all the answers

    What is the immediate release of hormones called upon stimulation?

    <p>Constitutive release</p> Signup and view all the answers

    What is the second messenger involved in G-protein coupled receptor signaling?

    <p>$IP_3$</p> Signup and view all the answers

    Which type of hormones are secreted directly into the bloodstream from endocrine glands?

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

    Which gland helps regulate the level of calcium in the blood?

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

    Which type of hormones can cross the plasma membrane due to their lipid solubility?

    <p>Thyroid hormones</p> Signup and view all the answers

    What is the main factor used for the classification of hormones discussed in the text?

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

    Which hormone type acts on receptors located on different cells than where it was produced?

    <p>Paracrine hormones</p> Signup and view all the answers

    What is the main difference between water-soluble and lipid-soluble hormones?

    <p>Lipid-soluble hormones can directly enter target cells</p> Signup and view all the answers

    Which of the following is NOT a mechanism for regulating hormone secretion?

    <p>Genetic factors determining hormone receptor expression</p> Signup and view all the answers

    What is the process by which a hormone can increase or decrease the sensitivity of its target cells to itself or other hormones?

    <p>Up/downregulation</p> Signup and view all the answers

    Which of the following describes the interaction between hormones where one hormone cannot exert its full effect without the presence of another hormone?

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

    What is the term used to describe the process where more than one hormone produces the same effect on a target cell, and their combined effects are amplified?

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

    Which of the following describes the process where a hormone acts on and regulates cells that are in close proximity to the cells that produced the hormone?

    <p>Paracrine signaling</p> Signup and view all the answers

    Which of the following describes the process where a hormone acts on and regulates the same cells that produced the hormone?

    <p>Autocrine signaling</p> Signup and view all the answers

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