MEDICAL
GALLBLADDER AND EXCRETORY SYSTEM OF THE LIVER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which substance is NOT filtered out of the blood by the kidneys and then excreted?
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urea
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water
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salt
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CO2
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Explanation:
Detailed explanation-1: -Urine has salts, toxins, and water that need to be filtered out of the blood. After the kidneys make urine, it leaves the body using the rest of the urinary tract as a pathway.
Detailed explanation-2: -The most common waste products are urea and creatinine, but there are many other substances that need to be eliminated. The kidneys act as very efficient filters for ridding the body of waste and toxic substances, and returning vitamins, amino acids, glucose, hormones and other vital substances into the bloodstream.
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