Homework Help: biology

Posted by Anonymous on Friday, June 6, 2008 at 3:22pm.

two reasons potassium is more concentrated in urine than in the filtrate

why are blood cells and proteins usually not found in filtrate?

why are glucose and other nutrients found in the filtrate along with urea and other wastes?

biology - SraJMcGin, Friday, June 6, 2008 at 8:11pm
Thank you for using the Jiskha Homework Help Forum. Here are some sites to help you answer those questions:

1. (look at o #4): http://fau.pearlashes.com/anatomy/Chapter%2041B/Chapter%2041B.htm

2. (in resumé): http://cat.inist.fr/?aModele=afficheN&cpsidt=16585731

3. http://www.docstoc.com/docs/476548/The-Human-Excretory-System

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