MEDICAL
KIDNEY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Distillation and Evaporation
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Egestion and Excretion
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Ultra-filtration and Selective Re-absorption
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Mitosis and Meiosis
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Detailed explanation-1: -Ultrafiltration is the first step of urine production in which small molecules filter through Bowman’s capsule to the filtrate from the blood. On the other hand, selective reabsorption is the second step of urine production in which important molecules reabsorb back to the blood capillaries from the ultrafiltrate.
Detailed explanation-2: -Selective reabsorption is the process whereby certain molecules (e.g. ions, glucose and amino acids), after being filtered out of the capillaries along with nitrogenous waste products (i.e. urea) and water in the glomerulus, are reabsorbed from the filtrate as they pass through the nephron.
Detailed explanation-3: -Urine formation occurs in the kidney in three stages: filtration, reabsorption, and secretion.