Renal Handling of Substances Quiz
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Questions and Answers

What is the excretion rate when a substance is freely filtered but partly reabsorbed from the tubules?

  • Excretion rate is unrelated to filtration rate
  • Excretion rate equals filtration rate plus reabsorption rate
  • Excretion rate equals filtration rate minus reabsorption rate (correct)
  • Excretion rate is more than filtration rate

    • What happens to the excretion rate when a substance is freely filtered but neither reabsorbed nor secreted?

  • Excretion rate is more than filtration rate
  • Excretion rate is unrelated to filtration rate
  • Excretion rate equals filtration rate (correct)
  • Excretion rate is less than filtration rate

    • What occurs when a substance is freely filtered but totally reabsorbed?

  • Excretion rate equals filtration rate minus tubular secretion rate (correct)
  • Excretion rate equals filtration rate plus tubular secretion rate
  • Excretion rate is more than filtration rate
  • Excretion rate equals zero

    • What happens when a substance is freely filtered, not reabsorbed, and additional quantities are secreted into the renal tubules?

    <p>Excretion rate equals filtration rate plus tubular secretion rate</p> Signup and view all the answers

    What is the quantitative importance of tubular reabsorption in the formation of urine?

    <p>More important than tubular secretion</p> Signup and view all the answers

    What happens when a substance is freely filtered but neither reabsorbed nor secreted?

    <p>The excretion rate equals the filtration rate</p> Signup and view all the answers

    What occurs when a substance is freely filtered but totally reabsorbed?

    <p>The excretion rate is zero</p> Signup and view all the answers

    What is the quantitative importance of tubular reabsorption in the formation of urine?

    <p>It is more important than tubular secretion</p> Signup and view all the answers

    Why are large amounts of solutes filtered and then reabsorbed by the kidneys?

    <p>To regulate the concentration of solutes in the blood</p> Signup and view all the answers

    What occurs when a substance is freely filtered and is not reabsorbed, but additional quantities are secreted from the blood into the renal tubules?

    <p>The substance is rapidly cleared from the blood and excreted in large amounts in the urine</p> Signup and view all the answers

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