Chemical Coordination Chapter 18 Quiz
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Questions and Answers

What is the main function of endocrine glands?

  • Metabolism and growth
  • Regulation of body temperature
  • Controlling long term activity of target cells (correct)
  • Controlling short term activity of target cells

    • Which type of gland secretes chemical substances like hormones, sweats, enzymes, and sebum?

  • Gland with ducts
  • Ductless gland
  • Exocrine gland (correct)
  • Endocrine gland

    • How are steroid hormones manufactured?

  • By secretion from adrenal medulla
  • By modification of specific amino acids
  • By being composed of long chains of amino acids
  • By enzymatic modification of cholesterol (correct)

    • Where do catecholamines hormones originate from?

    <p>Adrenal medulla (A)</p> Signup and view all the answers

    Which hormone belongs to the peptide and protein hormones category?

    <p>Oxytocin (B)</p> Signup and view all the answers

    What is the primary function of endocrine glands?

    <p>Regulating different body functions (B)</p> Signup and view all the answers

    What are pheromones?

    <p>Substances secreted to the outside by an individual (B)</p> Signup and view all the answers

    Where do hormones have their effects?

    <p>At a site where specific receptors are present (target cells) (A)</p> Signup and view all the answers

    What is the primary function of hormones?

    <p>Maintaining homeostasis in the body (D)</p> Signup and view all the answers

    Where are receptors for hormones found on target cells?

    <p>Both on the cell membrane and inside the cell (A)</p> Signup and view all the answers

    What is the main function of hormones?

    <p>To regulate different body functions (D)</p> Signup and view all the answers

    Where do hormones have their effects?

    <p>At a site where specific receptors are present (A)</p> Signup and view all the answers

    What is the primary function of pheromones?

    <p>To communicate with other individuals of the same species (D)</p> Signup and view all the answers

    Where are receptors for hormones found on target cells?

    <p>On the cell membrane and inside the cell (B)</p> Signup and view all the answers

    What is the main function of endocrine glands?

    <p>To secrete various hormones to regulate different body functions (D)</p> Signup and view all the answers

    What is the primary difference between endocrine and exocrine glands?

    <p>Endocrine glands release secretions directly into the bloodstream, while exocrine glands use ducts to transport their secretions to target organs (C)</p> Signup and view all the answers

    Which chemical nature category do hormones like glucagon, ADH, and oxytocin belong to?

    <p>Peptide and protein hormones (C)</p> Signup and view all the answers

    What is the characteristic of hormones in terms of conveying regulatory information to their target cells?

    <p>They must be complex enough to convey the regulatory information effectively (C)</p> Signup and view all the answers

    Where do catecholamines hormones originate from?

    <p>Adrenal medulla (C)</p> Signup and view all the answers

    What is the source of steroid hormones?

    <p>Enzymatic modifications of cholesterol (C)</p> Signup and view all the answers

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