Respiratory System Quiz
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Questions and Answers

What is the term for the microscopic air sacs where gas exchange occurs in mammals and reptiles?

  • Bronchioles
  • Atria
  • Alveoli (correct)
  • Parabronchi
  • In birds, what are the microscopic air sacs that open into the bronchioles termed?

  • Atria (correct)
  • Bronchi
  • Parabronchi
  • Alveoli
  • What is the largest airway that communicates with the external environment in the respiratory system?

  • Atria
  • Bronchioles
  • Alveoli
  • Trachea (correct)
  • What is the process by which air is pumped from the environment into the alveoli or atria called?

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

    What is the term for the system of airways or hollow tubes that communicate with the external environment?

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

    How many alpha-amino acids are incorporated into proteins?

    <p>22</p> Signup and view all the answers

    In what form do amino acid residues exist as the second-largest component of human muscles and other tissues?

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

    How are amino acids formally named by the IUPAC-IUBMB Joint Commission on Biochemical Nomenclature?

    <p>Based on a fictitious 'neutral' structure</p> Signup and view all the answers

    What is the justification provided by the Commission for naming amino acids based on a fictitious 'neutral' structure?

    <p>Amino groups are unprotonated and carboxyl groups are undissociated</p> Signup and view all the answers

    In addition to their role as residues in proteins, amino acids participate in which of the following processes?

    <p>Neurotransmitter transport and biosynthesis</p> Signup and view all the answers

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