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 stage of urine production involves adding ammonia, uric acid, and other waste substances directly into the renal tubule?
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reabsorption
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filtration
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secretion
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excretion
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Explanation:
Detailed explanation-1: -Secretion involves the transfer of hydrogen ions, creatinine, drugs, and urea from the blood into the collecting duct, and is primarily made of water. Blood and glucose are not normally found in urine.
Detailed explanation-2: -Urine is formed in three main steps-glomerular filtration, reabsorption and secretion. It comprises 95 % water and 5% wastes such as ions of sodium, potassium and calcium, and nitrogenous wastes such as creatinine, urea and ammonia. Osmoregulation is the process of maintaining homeostasis of the body.
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