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Questions and Answers
What is the major excretory product of protein metabolism?
What is the major excretory product of protein metabolism?
- Ammonia
- Urea (correct)
- Nitrogen
- Protein
Where is urea formed?
Where is urea formed?
- Kidneys
- Liver (correct)
- Lungs
- Heart
What is the term used to refer to urea determination?
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?
What is the most important catabolic pathway for eliminating excess nitrogen in the human body?
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What is the source of urea in the blood?
What is the source of urea in the blood?
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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.
