Question

How is urine produced​

Answer 1

Urine is formed in the kidneys through a filtration of blood. All the wastes and chemicals are transformed into a liquid which we call urine.

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Answer 2

Answer:

the mechanism is urine formation involves 3 steps :-

1. Ultrafilteration : filteration of blood.

2.Selective Tubular reabsorption :99% of filterate formed per day is reabsorbed by renal tubules.

3. Tubular Secretion : during urine formation,the epithelial cells of renal tubules secrete excretory substances from the blood of peritubular capillary into the filtrate .