posted by Anonymous .
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?
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