Urea in Human Body
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Questions and Answers

What is the major excretory product of protein metabolism?

  • Ammonia
  • Urea (correct)
  • Nitrogen
  • Protein
  • Where is urea formed?

  • Kidneys
  • Liver (correct)
  • Lungs
  • Heart
  • What is the term used to refer to urea determination?

  • Blood Urea Nitrogen (BUN) (correct)
  • Nitrogen Elimination Rate (NER)
  • Urea Excretion Rate (UER)
  • Protein Catabolism Index (PCI)
  • What is the most important catabolic pathway for eliminating excess nitrogen in the human body?

    <p>Urea formation</p> Signup and view all the answers

    What is the source of urea in the blood?

    <p>Free ammonia generated during protein catabolism</p> Signup and view all the answers

    Study Notes

    Urea and Nitrogen Metabolism

    • Urea is the highest non-protein nitrogen compound in the blood.
    • Urea is the major excretory product of protein metabolism.
    • It is formed in the liver from free ammonia generated during protein catabolism.
    • The catabolic pathway of urea formation is the most important route for eliminating excess nitrogen in the human body.
    • Historically, urea was measured by determining nitrogen levels, leading to the term "blood urea nitrogen" (BUN) being used to refer to urea determination.

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    Description

    This quiz is about the role of urea in the human body, its formation, and its importance in eliminating excess nitrogen.

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