ECOLOGY
EXCRETORY PRODUCTS AND THEIR ELIMINATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Glucose
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Urea
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Proteins
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Water
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Salt Ions
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Detailed explanation-1: -Most of the Ca++, Na+, glucose, and amino acids must be reabsorbed by the nephron to maintain homeostatic plasma concentrations. Other substances, such as urea, K+, ammonia (NH3), creatinine, and some drugs are secreted into the filtrate as waste products.
Detailed explanation-2: -Secreted substances largely include hydrogen, creatinine, ions, and other types of waste products, such as drugs. Tubular secretion is the transfer of materials from peritubular capillaries to the renal tubular lumen and occurs mainly by active transport and passive diffusion.
Detailed explanation-3: -You have two kidneys that filter your blood, removing wastes and extra water to make urine.
Detailed explanation-4: -Waste Ions and Hydrogen Ions Secreted from the Blood Complete the Formation of Urine. The filtrate absorbed in the glomerulus flows through the renal tubule, where nutrients and water are reabsorbed into capillaries. At the same time, waste ions and hydrogen ions pass from the capillaries into the renal tubule.