Liver cells produce urea as a waste product, High concentration of urea in liver cells, Blood vessel flowing through the liver., Blood arriving in liver has a low concentration of urea, Blood leaving liver has a high concentration of urea., Urea diffuses from areas of high concentration to low..

Tabela rankingowa

Motyw

Opcje

Zmień szablon

Przywrócić automatycznie zapisane ćwiczenie: ?