pH Regulation
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Questions and Answers

Which two types of control systems regulate pH levels in the body?

  • Chemical buffers and respiratory mechanisms
  • Physiological buffers and urinary mechanisms
  • Chemical buffers and physiological buffers (correct)
  • Chemical mechanisms and urinary mechanisms
  • What is the primary function of chemical buffers in regulating pH levels?

  • To release excess hydrogen ions in the urine
  • To act immediately and stabilize pH levels (correct)
  • To reduce the acidity of the fluid
  • To act as a secondary defense against harmful shifts in pH levels
  • Which buffer mechanisms come into play if chemical buffers cannot stabilize pH levels?

  • Physiological buffers (correct)
  • Respiratory mechanisms
  • Urinary mechanisms
  • All of the above
  • What is the primary function of physiological buffers in regulating pH levels?

    <p>To act as a secondary defense against harmful shifts in pH levels</p> Signup and view all the answers

    Which buffer mechanisms act faster: chemical buffers or physiological buffers?

    <p>Chemical buffers</p> Signup and view all the answers

    What happens if the pH of body fluids falls outside the narrow blood pH range?

    <p>It disrupts many of the body's essential chemical processes</p> Signup and view all the answers

    Which buffer mechanism is slower acting compared to the others?

    <p>Urinary mechanisms</p> Signup and view all the answers

    Which mechanism acts as a secondary defense against harmful shifts in pH of body fluids?

    <p>Urinary mechanisms</p> Signup and view all the answers

    What happens if the pH of body fluids falls outside the narrow blood pH range?

    <p>It disrupts many of the body's essential chemical processes</p> Signup and view all the answers

    What is the primary function of respiratory mechanisms in regulating pH levels?

    <p>To release excess carbon dioxide</p> Signup and view all the answers

    What is the primary function of urinary mechanisms in regulating pH levels?

    <p>To act as a secondary defense</p> Signup and view all the answers

    Which buffer mechanism acts faster: chemical buffers or physiological buffers?

    <p>Chemical buffers</p> Signup and view all the answers

    What is the main difference between chemical buffers and physiological buffers?

    <p>Chemical buffers act immediately, while physiological buffers act after a few minutes</p> Signup and view all the answers

    Which mechanism reduces the acidity of the fluid by releasing excess hydrogen ions in the urine?

    <p>Urinary mechanisms</p> Signup and view all the answers

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