I keep getting “Urine formation” questions wrong in Excretory Products & Elimination. What's the trap?
thinking all the filtered fluid leaves as urine.
The usual trap: thinking all the filtered fluid leaves as urine. How to avoid it: about 99% of the filtrate is reabsorbed; only ~1% becomes urine. Go back to the definition — ultrafiltration in the glomerulus, then selective reabsorption and secretion in the tubules.
Key point
Urine formation
Common mistake
thinking all the filtered fluid leaves as urine.
Memory tip
about 99% of the filtrate is reabsorbed; only ~1% becomes urine.
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