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Questions and Answers
What is the primary component of urine?
What is the primary component of urine?
Which compound is present in urine at a concentration of around 7-8 grams per liter?
Which compound is present in urine at a concentration of around 7-8 grams per liter?
Which of the following is NOT a component of urine according to the text?
Which of the following is NOT a component of urine according to the text?
At what approximate concentration are phosphate ions present in urine?
At what approximate concentration are phosphate ions present in urine?
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What is the approximate concentration of potassium ions in urine?
What is the approximate concentration of potassium ions in urine?
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Study Notes
Urine is primarily composed of water, with various dissolved salts and organic compounds. Here's a breakdown of the components and their respective percentages:
- Water: around 95%
- Urea: about 7-8 grams per liter
- Creatinine: from 0.1 to 1 gram per liter
- Chloride ions: 3-4 milliequivalents per liter
- Sodium ions: 1-2 milliequivalents per liter
- Calcium ions: 0.1 milliequivalents per liter
- Magnesium ions: 0.1 milliequivalents per liter
- Phosphate ions: 0.1 milliequivalents per liter
- Potassium ions: 0.1 milliequivalents per liter
- Sulfates ions: 0.1 milliequivalents per liter
Urine also contains small amounts of glucose, uric acid, caffeine, vitamin C, leukocytes, enzymes, proteins, lipids, bilirubin, bile acids, steroids, pigments, hormones, and prostate antigens.
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Description
Test your knowledge on the composition of urine, including percentages of water, urea, creatinine, and various ions present. Explore the presence of other organic compounds found in urine as well.
