PBS 221: Biochemistry of Hormones and Hormonal Action Quiz
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Questions and Answers

What is the main role of hormones in the body?

  • Digesting food
  • Facilitating muscle growth
  • Regulating and coordinating physiological processes (correct)
  • Reducing metabolism

Where are hormones synthesized in the body?

  • Specialized cells within endocrine glands (correct)
  • Lymph nodes
  • Connective tissues
  • Muscles

What is the process of hormone synthesis primarily involved in?

  • Transcription and translation of genes (correct)
  • Photosynthesis
  • Cell division
  • Mitosis

What are prehormones or prohormones converted into to become biologically active?

<p>Mature, active hormones (B)</p> Signup and view all the answers

What are some key aspects involved in the biochemistry of hormones and their actions?

<p>Synthesis, secretion, transport, signal transduction (C)</p> Signup and view all the answers

In hormonal action, what process leads to the production of a specific response?

<p>Signal transduction pathways (B)</p> Signup and view all the answers

What type of hormones circulate freely in the bloodstream and require specific receptors on target cells for transport?

<p>Insulin (D)</p> Signup and view all the answers

What is the biologically active form of insulin after the removal of the central portion of the pro-insulin?

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

What regulates hormonal secretion by factors such as the body's internal feedback mechanisms and external stimuli like stress and light/dark cycles?

<p>Various factors including feedback mechanisms and external stimuli (C)</p> Signup and view all the answers

How are lipid-soluble hormones like steroid hormones transported throughout the body?

<p>Via carrier proteins (B)</p> Signup and view all the answers

What hormones are transported via the circulatory system in the body?

<p>Water-soluble hormones (D)</p> Signup and view all the answers

What type of hormones are synthesized as prohormones like Preinsulin before being released in their biologically active form?

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

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